Florian Enescu
Ideals of linear type, d-sequences, approximation complexes


The study of algebraic properties of Rees algebras associated to an ideal has been an important part of commutative algebra in the past twenty years. In particular, finding criteria to decide when Rees algebras are Cohen-Macaulay or Gorenstein presents major interest. In this expository talk, I will discuss some of the main concepts and techniques used in this theory.