## David Eisenbud

### Location: Evans 939

Among the most fundamental operations in commutative algebra and algebraic geometry is \emph{integral closure}, or \emph{normalization} as it is often called. I'll give an introduction to this idea and its uses, and I'll discuss the computational problem of finding the integral closure of a ring or an ideal, demonstrating how to do it in the Macaulay2 symbolic computation system.