The University of Michigan Algebraic Geometry Seminar 

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W09 F08
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W02 F01
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W00 F99
W99
date  speaker  affiliation  title 
Jan. 5, 2011  Alon Levy  Columbia  The space of rational maps on P^n and semistable reduction 
Jan. 12, 2011  Li Li  Oakland University  Hilbert schemes of points on a tame DeligneMumford stack 
Jan. 19, 2011  4pm: Alexander Duncan 5pm: Noah Giansiracusan 
UBC Brown 
Finite Groups of Low Essential Dimension TBA 
Jan. 26, 2011  Claudiu Raicu  Berkeley  The GarsiaStillmanSturmfels Conjecture 
Feb. 2, 2011  June Huh  Seminar snowed out  Huh's talk postponed to Feb. 16 
Feb. 9, 2011  Aaron Pixton  Princeton  Relations in the tautological ring of M_g 
Feb. 16, 2011  June Huh  UIUC  Representable homology classes in the product of projective spaces 
Tuesday Feb 22, 2011 3  4 pm 3096 EH 
Shihoko Ishii  Tokyo Inst. of Technology  Mather discrepancy and the arc space 
Feb 23, 2011  WeiPing Li  UST, Hong Kong  Higher rank DonaldsonThomas invariant 
March 2, 2011  No seminar  Winter Break  
March 9, 2011  No seminar  Ziweit Lectures  
March 10, 2011 2  3pm 3096 EH 
Rob Lazarsfeld  Talk to be rescheduled 

March 16 2011  János Kollár  Princeton  Varieties whose universal cover is quasiprojective 
March 22  25, 2011 I. Tues. March 22 3pm Colloquium II. Wed. March 23 III. Thurs. March 24 4:00  5:00 pm, 3088 EH IV. Fri. March 25 3:00  4:00 pm, 3088 EH 
Daniel Huybrechts  Bonn  Spring Lectures in Algebaric Geomerty I. Algebraic geometry of K3 surfaces via derived categories II. Exlicit FourierMukai equivalences; More on derived categories of K3 surfaces III. Short introduction to stability conditions IV. More on stability conditions, K3 surfaces 
March 24, 2011 2  3pm 3096 EH 
Rob Lazarsfeld  U. Mich  Asymptotic syzygies of algebraic varieties 
March 30, 2011  Thomas Bitoun  MIT  Holonomic Dmodules mod p 
April 2, 3, 2011  Workshop in honor of Igor Dolgachev  
April 6, 2011  Kevin Tucker  Utah and Princeton  A Uniform Description of Test Ideals and Multiplier Ideals 
Mon. April 11, 2011 3  4 pm 3088 EH 
Bernd Sturmfels  Berkeley  The convex hull of a space curve 
Wed. April 20, 2011 2  3:30 pm 3088 EH 
Student Talks  Mihai Fulger Michael Von Korff Zhixian Zhu 
Local volumnes FSignature of affine toric varieties TBA 
date  speaker  affiliation  title (click for an abstract) 
Sept. 15, 2010  Angelica Benito  Universidad Autonoma de Madrid  On the problem of resolution of singularities and some invariants in positive characteristic 
Sept. 22, 2010  Matt DeLand  U. Mich.  Rational simple connectedness and complete intersections 
Thursday Sept. 23, 2010 4:10 pm 
Rob Lazarsfeld  U. Mich.  Singularities in algebraic geometry: How many times does a polynomial vanish at a point? (Collegiate Lecture) 
Sept. 29, 2010  Brian Lehmann  U. Mich.  Analytic Multiplier Ideals for Big Divisors 
Oct. 6, 2010  Xinyi Yuan  visiting U. Mich.  CalabiYau theorem and algebraic dynamics 
Oct. 13, 2010  Andrew Snowden  MIT  A finiteness conjecture in invariant theory 
Tuesday, Oct. 19, 2010 4:00 pm 3088 EH 
Shigefumi Mori  RIMS  Three dimensional Qconic bundles and related topics (joint work with Y. Prokhorov) 
Oct. 20, 2010  F. Loeser  Jussieu  On the topology of algebraic varieties over nonarchimedean fields 
Oct. 27, 2010  Chenyang Xu  MIT  Birational boundedness of singular pairs 
Nov. 3, 2010 34 and 56 pm 3088 EH 
Emre Coskun  Univ. of Western Ontario  Nori's Obstruction to Universal Bundles 
Nov. 10, 2010  Bernard Teissier  Jussieu  A viewpoint on local resolution of singularities 
Nov. 17, 2010  ChenYu Chi  Harvard  A metrical approach to birationalism 
Nov. 24, 2010  No seminar  Thanksgiving  
Dec. 1, 2010  Matt Satriano  U. Mich.  Log geometry and toric stacks 
Dec. 8, 2010  Bhargav Bhatt  U. Mich.  Moduli of products of stable varieties 
date  speaker  affiliation  title (click for an abstract) 
Jan. 6, 2010  Brian Lehmann  MIT  Pseudoeffective Reduction Maps 
Jan. 13, 2010  Kristen Wickelgren  Harvard  Etale pi_1 obstructions to rational points 
Jan. 20, 2010  Greg Pearlstein  MSU  Normal functions and the Hodge conjecture 
Jan. 27, 2010  Davesh Maulik  MIT  NeronSeveri groups under specialization 
Feb. 3, 2010  
Feb. 10, 2010  D. Matsushita  Hokkaido University  On Lagrangian fibrations 
Feb. 17, 2010  Vivek Shende  Princeton  On the HOMFLY invariant of algebraic knots 
Feb. 24, 2010  Sam Raskin  Harvard University  Geometric Class Field Theory 
March 3, 2010  No seminar  
March 10, 2010  Frederick van der Wyck  Harvard University  Moduli of singular curves and crimping 
Thursday, March 18, 2010 2:30  4:00 pm 4088 EH 
Andrew Snowden  Stanford  Syzygies of Segre embeddings 
Tuesday, March 23, 2010 through Friday, March 26, 2010 
Marc Levine  University of DuisbergEssen  Tuesday, March 23 (3  4pm 3088 EH): Motivic homotopy theory: foundations, applications and perspectives Wednesday, March 24 (4  6pm 3088 EH): Algebraic cobordism Thursday, March 25 (4  5pm 3088 EH): Motivic stable homotopy theory and the motivic Postnikov tower Friday, March 26 (3  4 pm, 3088 EH) Motivic unstable homotopy theory 
March 31, 2010  No seminar  
April 7, 2010  No seminar  
April 14, 2010  Kartik Prasanna  U. Mich.  Algebraic cycles and padic Lfunctions 
Friady, April 16, 2010 3:00  4:00 pm 3088 EH 
Jonathan Wahl  UNC  Qhomology disk smoothings of complex surface singularities 
Wednesday, April 21, 2010 4:00  6:00 pm 3088 EH 
Matt Baker  Georgia Tech  Tropical linear series 
date  speaker  affiliation  title 
Sept. 16, 2009  Mark DeCataldo  Stony Brook  Topology of the Hitchin fibration and Hodge theory of character varieties 
Sept. 23, 2009  Tommaso De Fernex  Utah  Rigidity properties of Fano varieties 
Sept. 30, 2009  No seminar  
Oct. 7, 2009  Daniel Erman  Berkeley  Deformations of 0dimensional schemes 
Oct. 14, 2009  Yusuf Mustopa  UMich  Subordinate loci on symmetric products and syzygies of points 
Oct. 21, 2009  Stephanie Yang  KTH Stockholm  Tautological rings of moduli spaces of curves 
Oct. 28, 2009  No seminar  Ziwet lectures  
Nov. 4, 2009 3:00–3:55: 4088 EH 5:15–6:15: 3088 EH 
Kiran Kedlaya  MIT and IAS  Canonical determination of bdivisors, and formal classification of flat connections 
Nov. 11, 2009  Jesse Kass  UMich  Extending families of Jacobians 
Sat/Sun Nov 14–15  OSU/UIC/UM Weekend Algebraic Geometry Workshop  
Nov. 18, 2009 3:00 : 4088 EH 
Spencer Bloch  Chicago  More about the algebraic geometry of Feynman amplitudes 
Nov. 18, 2009  Vikraman Balaji  Chennai  Analogue of the NarasimhanSeshadri theorem in higher dimensions and holonomy 
Nov. 25, 2009  No seminar  Thanksgiving  
Dec. 2, 2009  Dimitri Markushevich  Lille, visiting UMich  Treelike compactification of the moduli space of rank 2 vector bundles over a projective surface 
Dec. 9, 2009  Yujong Tzeng  Stanford  The Universal Formulas for Counting Nodal Curves on Surfaces 
Dec. 16, 2009  Yujong Tzeng  Stanford  The Universal Formulas for Counting Nodal Curves on Surfaces 
Dec. 16, 2009  Bianca Viray  Berkeley  Failure of the Hasse principle for Enriques surfaces 
date  speaker  affiliation  title (click for an abstract) 
Jan. 7, 2009  Matt DeLand  Columbia  Cubic hypersurfaces are rationally simply connected 
Jan. 14, 2009  Ben Webster  MIT  Enveloping algebras and a strange duality for symplectic varieties 
Jan. 21, 2009  Jesse Kass  Harvard  A Riemann singularity theorem for singular curves 
Feb. 4, 2009  Yusuf Mustopa  Stony Brook  Cones of divisor classes on symmetric powers of curves 
Feb. 11, 2009  Jason Starr  Stony Brook  Keeler Lectures 
Feb. 18, 2009  David Witt Nystroem  Gotteberg  Chebyshev functions on Okounkov bodies 
Mar. 4, 2009  Mircea Mustata  UMich  On the Ascending Chain Condition for log canonical thresholds 
Mar. 10, 2009  Hélène Esnault  Essen  On abelian birational sections in char. 0 
Eckart Viehweg  Essen  On Kobayashi geodesics in A_{g}  
Mar. 11, 2009  Alexander Beilinson  Chicago  The period determinants on curves 
Mar. 24, 2009  Aaron Bertram  Utah  Revisiting Reider's theorem with Bridgeland stability 
Apr. 1, 2009  Maxim Kazarian  Moscow  Enumeration of multisingularities 
Apr. 8, 2009  Burt Totaro  Cambridge and MSRI  Algebraic surfaces and hyperbolic geometry 
Apr. 15, 2009  Paltin Ionescu  Bucharest  On the geometry of defective manifolds 
Apr. 21, 2009  D. Marcousevich  Lille  AbelJacobi map for hypersurfaces and noncommutative CalabiYau's 
Apr. 22, 2009  Wim Veys  KU Leuvin  Zeta functions and monodromy for ideals 
Apr. 22, 2009  Thomas Peternell  Bayreuth  Manifolds with nef tangent bundles 
Apr. 23, 2009  Roland Abauf  UMich students  Introduction to constellations 
Mihai Fulger  Effective numerical classes of cycles on projective bundles over curves  
Jose Gonzalez  On projectivizations of rank two toric vector bundles  
Kevin Tucker  On bounding the number of LC centers and compatibly Fsplit subvarieties  
Kelli Talaska  Planar networks and the totally nonnegative Grassmannian 
date  speaker  affiliation  title (click for an abstract) 
Sept. 10, 2008  Jason Starr  Stony Brook  Rational simple connectedness and Serre's "Conjecture II" 
Sept. 12, 2008  Brian Conrad  Stanford  Pseudoreductive groups 
Sept. 17, 2008  Joel Kamnitzer  Toronto  Equivalences of derived categories from geometric sl_{2} actions 
Sept. 24, 2008  Xinyi Yuan  IAS  Positivity in arithmetic geometry 
Oct. 1, 2008  Radu Laza  UMich  Triangulations of the sphere and degenerations of K3 surfaces 
Oct. 6, 2008  János Kollár  Princeton  Log canonical implies Du Bois 
Oct. 7, 2008  János Kollár  Princeton  Cremona transformations and homeomorphisms of topological surfaces 
Oct. 8, 2008  Matthew Simpson  U Mich  Moduli spaces of weighted conics 
Oct. 15, 2008  Brendan Hassett  Rice  Rational curves on holomorphic symplectic varieties 
Oct. 18–19, 2008 UMOSUUIC Workshop 
Davesh Maulik  Clay Inst. and MIT  GromovWitten theory and NoetherLefschetz theory 
Andrew Snowden  Princeton  The equations of the GIT quotient (P^{1})^{n}/PGL(2)  
Marc Levine  Northeastern  Double point cobordism  
Christian Schnell  UIC  Extending normal functions without singularities  
Oct. 22, 2008  Wing Suet Li  Georgia Tech  Horn inequalities for finite von Neumann algebras 
Oct. 30, 2008  Mihai Paun  Nancy  Extension of pluricanonical forms and nonvanishing 
Nov. 5, 2008  Stein Stromme  Bergen, visiting UMich  1skeleta and the n! ring 
Nov. 12, 2008  Lawrence Ein  UIC, visiting UMich  Extension theorems 
Dec. 10, 2008  Sam Payne  Stanford  Tropicalization and nonarchimedean analytification 
date  speaker  affiliation  title (click for an abstract 
Jan. 9, 2008  Danny Gillam  Columbia  The Crepant resolution conjecture for an involution of 3flags 
Jonathan Wise  Brown  Enumerative geometry of hyperelliptic curves in CP^{2}  
Jan. 16, 2008  Gueorgui Todorov  Utah  Pluricanonical maps on threefolds 
Dawei Chen  Harvard  Mori's program for the Kontsevich moduli space  
Jan. 23, 2008  Jarod Alper  Stanford  Good moduli spaces for Artin stacks 
Chanyang Xu  Princeton  Degenerations of rationally connected varieties  
Jan 28  Joe Harris  Harvard  
Jan. 30, 2008  Brian Conrad  UMich  
Feb. 13, 2008  Bumsig Kim  KIAS  A compactification of the space of maps from curves 
Feb. 20, 2008  Amanda Knecht  UMich  Weak approximation and strong rational connectivity 
Mar. 4 – 7, 2008 Spring lectures in algebraic geometry 
Ravi Vakil  Stanford  Murphy's law in algebraic geometry: Badlybehaved moduli spaces Reimagining universal covers and fundamental groups in algebraic and arithmetic geometry TBD A natural smooth compactification of the space of smooth genus 1 curves in projective space 
Mar. 12, 2008  Johannes Nicaise  Lille  Complex singularities and nonarchimedean geometry 
Mar. 19, 2008  Harry Tamvakis  Maryland  A Giambelli formula for isotropic Grassmannians 
Mar. 26, 2008  Jim Borger  ANU and Chicago  Witt vectors, Lambdarings, and absolute algebraic geometry 
Apr. 2, 2008  David Smyth  Harvard  New modular compactifications of M_{1,n} 
Apr. 9, 2008  Alfred Chen  NTU and Utah  On birational geometry of threefolds with terminal singularities. 
Apr. 16, 2008  Paolo Cascini  UCSB  On the Minimal Model Program 
Apr. 21, 2008  Brian Jurgelewicz  UMich students  Around the McKay correspondence 
ShinYao Jow  Mori dream spaces and the weak Lefschetz principle for Nef cones  
Eugene Eisenstein  A characteristic zero perspective on some results ot S. Takagi  
Kevin Tucker  Jumping numbers on algebraic surfaces with rational singularities  
Paul Johnson  Hurwitz numbers: the big picture and a small proof  
Alan Stapledon  Weighted Erhart theory and orbifold cohomology  
Apr. 23, 2008  David Rydh  KTH, visiting UMich  Families of cycles and the Chow scheme 
date  speaker  affiliation  title (click for an abstract) 
Sept. 12, 2007  Benjamin Howard  UMich  Nice projective embeddings for the GIT quotients (P^{1})^{n} / SL_{2} 
Sept. 19, 2007  Carl Miller  UMich  Fcrystals on characteristic p curves 
Sept. 26, 2007  Thomas Markwig  Visiting UMich  Tropical elliptic curves and their jinvariant 
Oct. 1, 2007  Junmyeong Jang  Purdue  Generic prank of semistable fibrations 
Oct. 3, 2007  Allen Knutson  UCSD  The space of commuting matrices, and statistical mechanics 
Oct. 9, 2007  Allen Knutson  UCSD  Limits of subvarieties: subschemes vs. branchvarieties 
Oct. 11, 2007  Applications of branchvarieties  
Oct. 16, 2007  Schubert varieties in G/B are normal and CohenMacaulay  
Oct. 10, 2007  Daniel Allcock  Texas, visiting UMich  The moduli space of cubic threefolds as a ball quotient 
Oct. 17, 2007  Claude Sabbah  Ecole Polytechnique  An extension of Hodge theory 
Oct. 20–21, 2007 OSU/UM Alg. Geom Workshop 
Mihnea Popa  UIC  Numerical inequalities via syzygies and generic vanishing 
Patrick Brosnan  UBC  Essential dimension and algebraic stacks  
Sandor Kovacs  Washington  Characterizations of projective spaces and hyperquadrics  
William Fulton  UMich  On the equivariant cohomology of homogeneous varieties  
Oct. 24, 2007  Prakash Belkale  UNC  Generalizations of the Horn and saturation conjectures 
Nov. 7, 2007  Jenia Tevelev  UMass  Tropical compactifications of subvarieties of tori 
Nov. 13, 2007  Vadim Vologodsky  Chicago  The conjugate filtration on the ring of differential operators in characteristic p 
Nov. 14, 2007  Richard Rimanyi  UNC  Equivariant classes of matroid realization spaces 
Nov. 28, 2007  Hannah Markwig  UMich  Counting tropical rational curves 
Dec. 5, 2007  Mike Roth  Queens  Cup products on complete flag varieties 
Dec. 12, 2007  Amanda Knecht  UMich  Weak Approximation and Strong Rational Connectivity 
date  speaker  affiliation  title (click for an abstract) 
Jan. 10, 2007  Joe Ruskino  Georgia  Equivlanece of mirror families constructed from toric degenerations of flag varieties 
Jan. 17, 2007  Rebecca Lehman  MIT  BrillNoether theorems with ramification 
Jan. 17, 2007  Robert Easton  Stanford  Branched group covers and their applications 
Jan. 18, 2007  Michael Guy  Georgia  Moduli of weighted stable maps and their gravitational descendants 
Jan. 19, 2007  Carl Miller  Berkeley  Etale sheaves of F_{p} modules on a characteristic p curve 
Gabriel Kerr  Chicago  Weighted blowups and homological mirror symmetry for toric surfaces  
Jan. 24, 2007  Davesh Maulik  Princeton  GromovWitten theory and DonaldsonThomas theory 
Jan. 31, 2007  Michael Nakamaye  New Mexico  Diophantine geometry and variation of base loci 
Feb. 7, 2007  Dagen Karp  Berkeley  Cremona, permutohedra and projective space 
Feb. 14, 2007  David Lehavi  UMich  There are no projective surfaces in M 
Feb. 21, 2007  Max Lieblich  Princeton  The Brauer group of a function field and localtoglobal principles 
Mar. 7, 2007  Sebastien Boucksom  Jussieu  Formal plurisubharmonic functions 
Mar. 14, 2007  Arend Bayer  Utah  rth root construction, weighted stable maps and orbifold quantum cohomology 
Mar. 21, 2007  Mattias Jonsson  UMich  On volumes of divisors and a problem of Teissier 
Mar. 28, 2007  Sebastian CasalainaMartin  Harvard  Prym varieties and the Shottky problem for cubic threefolds 
Apr. 4, 2007  Alina Marian  Yale  The moduli space of vector bundles on a curve: intersection theory and theta functions 
Apr. 11, 2007  Thomas Lam  Harvard  Affine Schubert calculus 
Apr. 23–27, 2007  Shigeru Mukai  RIMS  Spring Lectures in Algebraic Geometry 
date  speaker  affiliation  title (click for an abstract) 
Sept. 13, 2006  Radu Laza  UMich  Deformations of singulaities and variations of GIT quotients 
Sept. 20, 2006  Aaron Bertram  Utah  Pistability: or how I learned to stop worrying and love the derived category 
Sept. 27, 2006  Karl Schwede  UMich  A simple characterization of Du Bois singularities and applications 
Oct. 4, 2006  Ivan Petrakiev  UMich  On Zerodimensional schemes with small Hilbert functions 
Oct. 11, 2006  Davesh Maulik  Princeton  GW/DT correspondence for toric threefolds 
Oct. 14–15, 2006 OSU–UM Algebraic Geometry Workshop 
Karen Smith  UMich  Divisors essential for multiplier ideals 
Gary Kennedy  OSU  Tangential quantum cohomology of arbitrary order  
Ezra Miller  Minnesota, visiting UMich  Components of binomial schemes  
Claire Voisin  Paris VI  Hodge loci and absolute Hodge classes  
Oct. 18, 2006  Brian Osserman  Berkeley  Of functors and stacks 
Oct. 25, 2006  Ezra Miller  Minnesota visiting UMich  Horn hypergeometric systems and binomial Dmodules 
Nov. 8, 2006  Michela Artebani  Visiting UMich  K3 surfaces and splitting curves 
Nov. 14, 2006  Fyodor Zak  Indep. Univ. of Moscow  Math is easy: a detective story about disparate results in algebraic geometry being a consequence of an elementary theorem in Grassmannian geometry 
Nov. 15, 2006  Fyodor Zak  Indep. Univ. of Moscow  Aspects of Positivity: Asymptotic Geometry of Projective Space 
Nov. 29, 2006  Chuck Cadman  UMich  A relation between relative and twisted GromovWitten invariants 
Dec. 6, 2006  Julianna Tymoczko  UMich  Permutation actions on the equivariant cohomology of Grassmannians 
date  speaker  affiliation  title (click for an abstract) 
Jan. 18, 2006  Sabin Cautis  Harvard  Extending families of curves 
Jan. 25, 2006  Fabrizio Catanese  Bayreuth (visiting UMich)  Fibrations of curves of low genus and applications 
Feb. 1, 2006  Oren BenBasset  Penn  Twisting equivalences between derived categories 
Feb. 8, 2006  Ron Donagi  Penn  Standard Models for string theory via algebraic geometry 
Feb. 15, 2006  Jonathan Wahl  UNC  Universal abelian coverings of complex surface singularities 
Feb. 16, 2006  Manuel Blickle  Essen  Local cohomology invariants in terms of etale cohomolgy 
Feb. 22, 2006  Paolo Cascini  UCSB  KählerRicci Flow and the Minimal Model Program for Projective Varieties 
Mar. 8, 2006  Martin Olsson  Texas  Compactifying the moduli space of abelian varieties 
Mar. 15, 2006  Alastair Craw  Stony Brook  Toric varieties are fine moduli spaces 
Mar. 22, 2006  Noam Elkies  Harvard  K3 and elliptic surfaces of high rank over Q 
Mar. 29, 2006  Alessio Corti  Imperial College  Quantum cohomology of Fano simplicial toric stacks 
Apr. 5, 2006  Rares Rasdeaconu  UMich  On projective manifolds of negative Kodaira dimension 
Apr. 12, 2006  Sandor Kovacs  Washington  Families of varieties of general type 
Apr. 13–19  Paul Biran  Tel Aviv  Linear systems, singularities, and Lagrangian cycles 
Apr. 19, 2006  Tommaso de Fernex  Utah  Adjunction beyond thresholds and birational rigidity of hypersurfaces 
Apr. 21, 2006  Giancarlo Urzua  UMich students  Compact Riemann surfaces with a Z/p action and genus at most p 
Kyungyong Lee  Unexpected local algebraic property of multiplier ideals  
Bryden Cais  Compatibilities in padic cohomology  
Dave Anderson  Double Schubert polynomials  
Apr. 24–26  Workshop on the moduli space of curves and Gromov–Witten theory 
date  speaker  affiliation  title (click for an abstract) 
Sept. 14, 2005  Renzo Cavaleri  UMich  GromovWitten theory, local GromovWitten theory and admissible covers 
Sept. 21, 2005  Harm Dersken  UMich  Combinatorics and quivers 
Sept. 28, 2005  David Speyer  UMich  A matroid invariant via the Ktheory of the Grassmannian 
Oct. 5, 2005  Eric Sharpe  Utah  Deformation theory, mirror symmetry, stacks, and physics 
Oct. 12, 2005  Brian Conrad  UMich  Canonical subgroups in abelian varieties 
Oct. 19, 2005  James McKernan  UCSB  Applications of multiplier ideal sheaves to birational geometry 
Oct. 26, 2005  János Kollár  Princeton  Holonomy groups of stable vector bundles 
Nov. 2, 2005  Ivan Petrakiev  Harvard  A step in Castelnuovo theory 
Nov. 9, 2005  Karl Schwede  Washington  Finjective and DuBois singularities 
Nov. 16, 2005  Minhyong Kim  Purdue  The motivic fundamental group and Diophantine geometry 
Nov. 30, 2005  Eugenii Shustin  Tel Aviv  Enumeration of real rational curves and tropical geometry 
Dec. 7, 2005  Carolina Araujo  IMPA  Rational curves of minimal degree and characterizations of projective varieties 
Dec. 10–11, 2005 UM–OSU Algebraic Geometry Workshop 
David Lehavi  Princeton  A_{6} is of general type 
Izzet Coskun  MIT  The ample and effective cones of Kontsevich moduli spaces  
Ludmil Katzarkov  UC Irvine and Miami  Homological mirror symmetry and birational geometry  
David Speyer  Clay Inst. and UMich  Hives by degenerating triple of flags 
date  speaker  affiliation  title (click for an abstract) 
Jan. 19, 2005  Renzo Cavaleri  Utah  Topological quantum field theories, admissible covers, and a deformation of the class algebra of the symmetric group 
Jan. 26, 2005  Deepee Khosla  Harvard  Divisors on moduli spaces of curves: new techniques for calculation 
Feb. 2, 2005  Roy Skjelnes  visiting UMich  Hilbert scheme compactification of the configuration space of points 
Feb. 9, 2005  Maryam Mirzakhani  Clay Institute  Intersection theory on the moduli space of curves and simple geodesics on hyperbolic surfaces 
Feb. 16, 2005  Alex Yong  Berkeley  On smoothness and Gorensteinness of Schubert varieties 
Feb. 23, 2005  Igor Dolgachev  UMich  Life in characteristic p 
Mar. 9, 2005  Jaroslaw Wlodarczyk  Purdue  Simple Hironaka resolution 
Mar. 16, 2005  Kalle Karu  UBC  Toric residue mirror conjecture 
Mar. 23, 2005  Mark Goresky  IAS  Moduli spaces of abelian varieties 
Mar. 24, 2005  Lev Borisov  Wisconsin  Modular symbols and logarithmic derivatives of the theta function 
Mar. 30, 2005  Holger Brenner  Sheffield  Tight closure and positivity 
Apr. 2–3  UMich–OSU Algebraic Geometry workshop (in Columbus)  
Apr. 6, 2005  Julius Ross  Columbia  
Apr. 13, 2005  Nick ShephardBarron  Cambridge  
Apr. 18–22  Burt Totaro  Cambridge  Lectures on the topology of algebraic varieties 
date  speaker  affiliation  title (click for an abstract) 
Sept. 15, 2004  Tommaso de Fernex  UMich  Stringy Chern classes of singular varieties 
Sept. 22, 2004  Charles Cadman  UMich  GromovWitten invariants of stacks 
Sept. 29, 2004  Mircea Mustata  UMich  On some invariants of singularities 
Oct. 6, 2004  Stephanie Yang  UMich  HarbourneHirschowitz and related conjectures 
Oct. 12, 2004  Jessica Sidman  Mt. Holyoke  Lexicographic generic initial ideals of complete intersection space curves 
Oct. 13, 2004  Angela Gibney  Penn  A higher dimensional analog of the moduli space of pointed stable rational curves 
Oct. 20, 2004  Siegfried Bosch  Münster  Duality for Néron models of abelian varieties 
Oct. 27, 2004  János Kollár  Princeton  Seifert bundles 
Nov. 3, 2004  Mihnea Popa  Harvard  Castelnuovo theory and the geometric Schottky problem 
Nov. 10, 2004  Ravi Vakil  Stanford  Murphy's Law in algebraic geometry: badlybehaved deformation spaces 
Nov. 17, 2004  Sunsuke Takagi  visiting UMich  A subadditivity property of multiplier ideals on singular varieties 
Nov. 20–21 OSU/UM Algebraic Geometry workshop 
Mike Roth  Queens  Affine stratifications of M_{g, n} 
Sheldon Katz  UIUC  DonaldsonThomas and GopakumarVafa invariants of CalabiYau threefolds  
Roy Joshua  OSU  Intersection cohomology of reductive varieties  
Rob Lazarsfeld  UMich  Asymptotic invariants of line bundles  
Dec. 1, 2004  Chris Hacon  Utah  Rational curves and the locus of logcanonical singularities 
Dec. 8, 2004  Elham Izadi  Georgia  On the Hodge conjecture for abelian varieties 
date  speaker  affiliation  title (click for an abstract) 
Jan. 14, 2004  Max Lieblich  MIT  Moduli of twisted sheaves and the periodindex problem 
Jan. 21, 2004  Brian Osserman  MIT  Limit linear series: simple cases in positive characteristic 
Jan. 27, 2004  Stephanie Yang  Harvard  Linear systems of plane curves through base points of bounded multiplicity 
Jan. 28, 2004  Yongnam Lee  Sogang  Godeaux surfaces 
Feb. 4, 2004  Charles Cadman  Columbia  An enumerative application of the quantum cohomology of a stack 
Feb. 11, 2004  Kevin Purbhoo  Berkeley  Nullstellensaetze for tropical geometry and amoebas 
Feb. 18, 2004  Al Taylor  UMich  Highorder microlocal tangents to analytic varieties 
Mar. 6–7  UMich–OSU Algebraic Geometry workshop (in Columbus)  
Mar. 10, 2004  JunMuk Hwang  KIAS and Harvard  Prolongations of linear Lie algebras and rigidity of G / P 
Mar. 17, 2004  Matthew Szczesny  Penn  Chiral de Rham complex, orbifolds, and discrete torsion 
Mar. 24, 2004  Olivier Debarre  Strasbourg / UMich  Varieties with ample cotangent bundle 
Mar. 31, 2004  Eric Zaslow  Northwestern  SYZ Geometry and the "Y" Vertex 
Apr. 7, 2004  Chris Hacon  Utah  Birational geometry of irregular varieties 
Apr. 14, 2004  David Lehavi  Ohio State  Formulas for the arithmetic geometric mean of curves of genus 3 
date  speaker  affiliation  title (click for an abstract) 
Sept. 10, 2003  Nicholas Proudfoot  Berkeley  Hyperkahler analogues of your favorite Kahler manifolds 
Sept. 17–19  Allen Knutson  Berkeley  Keeler Lectures 
Sept. 24, 2003  Paul Hacking  UMich  Compact moduli of hyperplane arrangements 
Oct. 1, 2003  Julianna Tymoczko  UMich  Intersection conditions in flag varieties 
Oct. 8 , 2003  Paul Horja  UMich  Hypergeometric functions and toric birational geometry 
Oct. 15, 2003  Mihnea Popa  Harvard and Chicago  Restricted volumes and asymptotic intersection numbers 
Oct. 22, 2003  Brian Conrad  UMich  
Oct. 29, 2003  Russell Goward  UMich  The Algorithm of resolution of singularities 
Nov. 5, 2003  Nero Budur  Johns Hopkins  Different viewpoints on nonlog terminal singularities 
Nov. 8–9 OSU/UMich Algebraic Geometry workshop 
Herb Clemens  OSU  Towards a variational version of the Hodge Conjecture 
Jason Starr  MIT  Sections of algebraic fibrations over a surface  
Tom Nevins  UMich  Particles, differential operators and algebraic surfaces  
Rahul Pandharipande  Princeton  Tautological classes on the moduli space of curves  
Nov. 12, 2003  Shunsuke Takagi  Tokyo  A tight closuretheoretic approach to multiplier ideals 
Dec. 3, 2003  Izzet Coskun  Harvard  Enumerative geometry of higherdimensional varieties via degenerations 
date  speaker  affiliation  title (click for an abstract) 
Jan. 8, 2003  Ezra Miller  MSRI  Positive formulae for quiver polynomials 
Jan. 22, 2003  Y. Lee  Sogang  Smoothable stable log surfaces 
Jan. 29, 2003  J. Keum  KIAS  Universal coverings of open K3 surfaces 
Feb. 5, 2003  J.C. Chen  Harvard  Flops, moduli spaces and derived categories 
Feb. 8–9  UMich–OSU Algebraic Geometry workshop (in Columbus)  
Feb. 12, 2003  G. Pacienza  OSU  Subvarieties of general type on general projective hypersurfaces 
Feb. 19, 2003  S. Fomin and W. Fulton  UMich  Eigenvalues, singular values, and Schubert calculus 
Mar. 5, 2003  Lev Borisov  Wisconsin  Cohomology of stacky toric varieties 
Mar. 12, 2003  Igor Dolgachev  UMich  Abstract configurations in algebraic geometry 
Mar. 19, 2003  Ravi Vakil  Stanford  Schubert induction 
Mar. 26, 2003  Dan Abramovich  Boston U. & Brown  Valuative criterion for stable complexes 
Apr. 2, 2003  Donghoon Hyeon  Rice  Moduli space of principal bundles 
Apr. 9, 2003  Valery Alexeev  Georgia 
date  speaker  affiliation  title (click for an abstract) 
Sept. 18, 2002  Charles Favre  Jussieu  A valuative criterion for integrability 
Sept. 25, 2002  Sigrid Wortmann  Heidelberg  Motives and automorphic forms 
Oct. 2, 2002  Mircea Mustata  Clay Inst. and Harvard  Log discrepancies, jet schemes and inversion of adjunction 
Oct. 9, 2002  Yurii Neretin  visiting UMich  Complete colliniations and hinge semigroup 
Oct. 16, 2002  Howard Thompson  UMich  Multiplier ideals of torus invariant ideals on QGorenstein toric varieties can be computed using convex geometry 
Oct. 23, 2002  Angela Gibney  UMich  Numerical criteria for a divisor on M_{g} to be ample 
Oct. 30, 2002  Grighory Mikhalkin  Utah  Counting holomorphic curves via lattice paths in polygons 
Nov. 6, 2002  Tommaso de Fernex  UMich  Singularities of pairs and birational rigidity 
Nov. 13, 2002  Nick ShepherdBarron  Cambridge  Smoothness of deformation spaces in mixed characteristic via tangent lifting 
Nov. 15, 2002  Phillip Griffiths  IAS  Hodgetheoretic invariants of algebraic cycles 
Nov. 20, 2002  Daniel Krashen  UCLA and UMich  The geometry of central simple algebras 
Dec. 4, 2002  Tom Nevins  UMich  Differential solitons in algebraic geometry 
date  speaker  affiliation  title (click for an abstract) 
Jan. 9, 2002  Andrew Kresch  Penn  GromovWitten invariants of Grassmannians 
Jan. 16, 2002  Tomaso de Fernex  UIC  Birational geometry and inequalities of the different invariants 
Jan. 23, 2002  Mike Roth  UMich  AbelJacobi maps and the cubic threefold 
Jan. 30, 2002  Karen Smith  UMich  An application of multiplier ideals to valuation theory 
Feb. 13, 2002  Gavril Farkas  UMich  Stable bundles, difference varieties and divisors on moduli spaces of pointed curves 
Feb. 20, 2002  Anders Buch  MIT  Quantum cohomology of Grassmannians 
Feb. 28–Mar. 3  Miniconference on algebraic curves and their moduli  
Mar. 4, 2002  Mihnea Popa  Harvard  Sumner Meyers Prize Lecture 
Mar. 6, 2002  Brian Conrad  UMich  Approximations of formal deformations 
Mar. 13, 2002  Herb Clemens  IAS and Utah  Special colloquium 
Mar. 14  Herb Clemens  IAS and Utah  The Hilbert scheme of curves on a CalabiYau threefold as a gradient variety 
Mar. 18  Bob Friedman  Columbia  Regular elements in algebraic groups and principal Gbundles over elliptic curves 
Mar. 19  Bob Friedman  Columbia  Exceptional groups and Del Pezzo surfaces 
Mar. 20, 2002  Howard Thompson  Berkeley  From toric varieties to log schemes 
Mar. 27, 2002  Philip Candelas  Oxford  The zeta function for the quintic threefold 
Apr. 3, 2002  Burt Totaro  0xford  T.B.A. 
Apr. 4  Herwig Hauser  Innsbruck  Hironaka's induction, revisited 
Apr. 10, 2002  Eric Zaslow  Northwestern  Duality and the open string 
Apr. 17, 2002  Tony Pantev  Penn  Hodge structures on homotopy types 
date  speaker  affiliation  title (click for an abstract) 
Sept. 5, 2001  Mark Kisin  SFB, Muenster  Grothendieck's pcurvature conjecture for generic curves 
Sept. 12, 2001  Paul Horja  UMich  "Old" and new in mirror symmetry 
Sept. 19, 2001  Konstanze Rietsch  Cambridge  Total positivity, flag varieties and quantum cohomology 
Sept. 26, 2001  Karen Smith  UMich  Kawamata's nonvanishing conjecture 
Oct. 3, 2001  Paul Hacking  UMich  Compact moduli of surfaces and plane curves 
Oct. 10, 2001  Alfred Chen  visiting UMich  Linear series on irregular varieties 
Oct. 17, 2001  Sergey Fomin  UMich  Cluster algebras 
Oct. 24, 2001  Jim Milne  UMich  Grothendieck's standard conjectures and the Hodge conjecture 
Nov. 1  Rahul Pandharipande  Princeton  GromovWitten invariants and completed cycles 
Nov. 7, 2001  Vangelos Mouroukos  UMich  Motives 
Nov. 14, 2001  Tom Graber  Harvard  Families of rationally connected varieties 
Nov. 28, 2001  Michael Nakamaye  New Mexico  A numerical characterization of baseloci of linear series 
Dec. 5, 2001  Igor Dolgachev  UMich  Mumford's fake plane 
date  speaker  affiliation  title (click for an abstract) 
Jan. 10, 2001  Michael Thaddeus  Columbia  Mirror symmetry and Langlands duality 
Jan. 17, 2001  Mihnea Popa  UMich  Stable maps and quot schemes 
Jan. 24, 2001  Ravi Vakil  MIT  Branched covers of the projective line and the Chow ring of the moduli space of curves 
Jan. 31, 2001  Vangelos Mouroukos  U Mich  Filtrations on Chow groups and higher AbelJacobi maps 
Feb. 7, 2001  Jaroslaw Wlodarczyk  Purdue  Algebraic Morse theory, stratified toroidal varieties and factorization of birational maps 
Feb. 14, 2001  William Fulton  U Mich  Introduction to the Cayley Bacharach theorem 
Feb. 21, 2001  Angela Gibney  UMich  Towards the ample cone of the moduli space of pointed curves 
Mar. 7, 2001  Sheldon Katz  Oklahoma State  The multiple cover formula for P^{1} and the disk in a CalabiYau threefold 
Mar. 8, 2001  Michael Shapiro  KTH Stockholm  Hurwitz numbers and moduli spaces 
Mar. 14, 2001  Flavio Flamini  Rome III  Families of nodal curves on algebraic surfaces 
Mar. 21, 2001  JM Hwang  KIAS  Deformation rigidity of G / P 
Apr. 4, 2001  Chris Woodward  Rutgers  Parabolic bundles on curves and products of conjugacy classes 
Apr. 11, 2001  Johan De Jong  MIT  Counting elliptic surfaces over P^{1} 
date  speaker  affiliation  title (click for an abstract) 
Sept. 6, 2000  Thomas Bauer  Marburg  Seshadri constants on surfaces and Jacobians 
Tomasz Szemberg  Visiting UMich  Inner projections and higher order embeddings  
Sept. 13, 2000  Angela Gibney  UMich  Fibrations of the moduli space of stable npointed curves of genus g 
Tom Nevins  UMich  Moduli stacks of framed sheaves  
Sept. 20, 2000  Gavril Farkas  UMich  The geometry of the moduli space of curves of genus 23 
Silke Lekaus  Visiting UMich  Relation between the dimension of the ring generated by a vector bundle and a torsor trivializing it  
Sept. 27, 2000  Gilberto Bini  UMich  Some results on the Euler characteristic of the moduli space of pointed curves 
Oct. 4, 2000  Tom Garrity  Visiting UMich  Using algebraic geometry to understand CR structures: local and global invariants for real submanifolds of a complex space 
Oct. 11, 2000  Ivo Radloff  Visiting UMich  Smooth positive surfaces in threefolds 
Prishka Jahnke  VIsiting UMich  Submanifolds with splitting tangent sequence  
Oct. 18, 2000  Igor Dolgachev  UMich  Linear codes and algebraic surfaces 
Nov. 1, 2000  A. Klyachko  Visiting UMich  Stable bundles, representation theory, and Hermitian operators 
Nov. 8, 2000  Finn Knudsen  Visiting UMich  The cohomological determinant: from diagrams to signs 
Nov. 15, 2000  Igor Dolgachev  UMich  Introduction to Bernstein polynomials 
Nov. 29, 2000  Mircea Mustata  Berkeley  Jet schemes of singular varieties and integration on spaces of arcs 
Dec. 6, 2000  Sheldon Katz  Oklahoma State  Counting algebraic curves by geometry and physics 
Dec. 13, 2000  Sandra Di Rocco  Yale  General properties and applications of jet bundles 
When does a jet bundle split? 
date  speaker  affiliation  title (click for an abstract) 
Jan. 12, 2000  Karen Smith  UMich  Test ideals and multiplier ideals – another test 
Jan. 19, 2000  Harm Derksen  MIT  Quiver representations 
Jan. 26, 2000  Tom Nevins  Chicago  Moduli spaces of framed sheaves on ruled surfaces 
Feb. 2, 2000  S. Kondo  Nagoya  Automorphisms of K3 surfaces and the moduli space of curves of genus 3 
Feb. 16, 2000  Matthew Emerton  UMich  Crystals and padic sheaves on varieties in characteristic p 
Feb. 23, 2000  Lawrence Ein  Multiplier ideals  
Mar. 8, 2000  Igor Dolgachev  UMich  Theta divisors 
Mar. 15, 2000  Brendan Hassett  Chicago  Ample divisors on holomorphic symplectic fourfolds 
Mar. 22, 2000  Inaugural Lecture: Gehring Visiting Professorship  The diversity of quasiconformal phenomena  
Mar. 29, 2000  Sándor Kovács  Chicago  ArakelovParshin boundedness 
Apr. 3, 2000  David BenZvi  Chicago  Moduli of curves and bundles via vertex algebras 
Apr. 5, 2000  Mihnea Popa  UMich  Generalized theta linear series on moduli spaces of vector bundles on curves 
Apr. 6, 2000  Karen Smith  UMich  Some applications of multiplier ideals to commutative algebra 
Apr. 12, 2000  A. Verra  Rome III  The Gauss map for the Prym theta divisor 
Apr. 14–16  Workshop in Algebraic Geometry in honor of William Fulton 
date  speaker  affiliation  title (click for an abstract) 
Sept. 15, 1999  Yujiro Kawamata  Tokyo  The adjunction of canonical divisors 
Sept. 22, 1999  Ana Bravo  UMich visitor  Smoothness and arithmetical schemes 
Sept. 29, 1999  E. Mouroukos  UMich  Arithmetic Hodge structures and higher AbelJacobi maps, after Green, Asakura and Saito 
Oct. 6, 1999  Gary Kennedy  UMich visitor  Contact formulas for rational plane curves 
Oct. 11, 1999  ChingLi Chai  Penn  Congruence of Neron models: solution to a problem of Gross and Prasad 
Oct. 11, 1999  Moshe Jarden  Tel Aviv  Torsion on abelian varieties over large algebraic fields 
Oct. 12, 1999  Conan Leung  Minnesota  Rational curves on CalabiYau manifolds 
Oct. 13, 1999  Alex Ulyanov  Penn State  Polydiagonal compactification of configuration spaces 
Oct. 20, 1999  Paul Feehan  Ohio State  Witten's conjecture and gluing PU(2) monopoles 
Oct. 27, 1999  Jason Starr  Harvard  Rational curves on hypersurfaces in P^{n} 
Nov. 2, 1999  Eleny Ionel  Wisconsin  GromovWitten invariants of symplectic sums and applications 
Nov. 3, 1999  Linda Chen  UMich visitor  Quantum cohomology of flag manifolds 
Nov. 9, 1999  Michael Duff  UM Physics  A layman's guide to Mtheory 
Nov. 10, 1999  Martin Sombra  IAS  Effective Nullstellensatz, division formulas, and all that 
Nov. 17, 1999  Dennis Gaitsgory  Harvard  The appearance of the Langlands dual group 
Nov. 22, 1999  Sasha Orlik  Cologne  The cohomology of period domains over finite fields 
Dec. 1, 1999  Gerald Höhn  Freiburg  Second quantized elliptic genera and Borcherds lifts 
Dec. 8, 1999  Lucia Caporaso  Harvard  Uniformity properties of curves over function fields 
Dec. 9, 1999  David Mumford  Brown  Some experiences with applied math – or "How to wear two hats on one head" 
date  speaker  affiliation  title (click for an abstract) 
Jan. 13, 1999  Karen Smith  UMich  Basic Notions: The Cartier isomorphism 
Jan. 20, 1999  Mark de Cataldo  Harvard  The decomposition theorem : Hilbert schemes and Heisenberg algebras 
Jan. 27, 1999  Y. Kachi  Johns Hopkins  Flips, numerical projective spaces, and the index theorem 
Feb. 3, 1999  Adam Logan  Harvard  Moduli of curves with marked points 
Feb. 10, 1999  Sándor Kovács  Chicago  Rational singularities 
Feb. 17, 1999  Pasha Belorousski  UMich  Intermediate Notions: Hilbert schemes of points of surfaces 
Feb. 22, 1999  David BenZvi  Harvard  Spectral curves, opers and integrable systems 
Feb. 23, 1999  Anders Buch  Chicago  Formulas for degeneracy loci 
Feb. 24, 1999  Brian Greene  Columbia  String theory and the fabric of spacetime 
Mar. 9, 1999  Anders Buch  Chicago  Formulas for degeneracy loci: II 
Mar. 10, 1999  Dan Burns  UMich  Stable bundles and integrable systems 
Mar. 10, 1999  Kalle Karu  Boston U.  Semistable reduction in characteristic zero 
Mar. 17, 1999  Vladimir Baranovsky  Chicago  Moduli of sheaves on surfaces and the action of the oscillator algebra 
Mar. 23, 1999  Bernd Sturmfels  Berkeley  Resonant hypergeometric series 
Mar. 23, 1999  Bernd Sturmfels  Berkeley  Cellular resolutions in combinatorial commutative algebra 
Mar. 24, 1999  Ravi Vakil  MIT  Twelve points on the projective line 
Mar. 29, 1999  Brian Conrad  Harvard  Twisted Galois representations and elliptic curves 
Mar. 30, 1999  J.P. Demailly  Grenoble  On the hard Lefschetz theorem for pseudoeffective line bundles 
Mar. 31, 1999  Matthew Emerton  UMich  The geometric Langlands construction 
Mar. 31, 1999  J.P. Demailly  Grenoble  Hyperbolicity of generic surfaces of large degree in P^{3} 
Apr. 6, 1999  Dennis Gaitsgory  IAS  Geometric construction of central elements in the affine Hecke algebra 
Apr. 7, 1999  Dennis Gaitsgory  IAS  Localtoglobal methods of construction of automorphic Dmodules 
Apr. 7, 1999  Vangelis Mouroukos  Chicago  Cohomological connectivity and algebraic cycles 
Apr. 12, 1999  Pasha Belorousski  UMich  MumfordPolyakov measure on the moduli space of algebraic curves 
Apr. 14, 1999  DeQi Zhang  Singapore  Fano varieties with mild singularities, Cartier index and fundamental group 
Apr. 21, 1999  A. Barvinok  UMich  Quadratic convexity 