Student Commutative Algebra Date:  Wednesday, April 17, 2013 Location:  2866 East Hall (3:00 PM to 4:00 PM) Title:  Introduction to Semigroup Rings II Abstract:   We first discuss the generation of semigroup rings by lattice ideals. Then, we focus on the more special case of affine semigroup rings, where the defining lattice ideals are prime. In the affine case properties of the ring correspond to the geometry of an associated polyhedral cone. The talk is example-heavy with casual mention of the research context for semigroup rings, including toric varieties and rings of invariants. Speaker:  Ashley Wheeler Institution:  UM Event Organizer:        Edit this event (login required). Add new event (login required). For access requests and instructions, contact math-webmaster@umich.edu Back to previous page Back to UM Math seminars/events page.