(Differential) primary decomposition of modules

Algebra Seminar
Tuesday, September 14, 2021 - 10:00am for 1 hour (actually 50 minutes)
Skiles 006
Justin Chen – ICERM/Georgia Tech – justin_chen2@brown.edu
Ashley K. Wheeler

Primary decomposition is an indispensable tool in commutative algebra, both theoretically and computationally in practice. While primary decomposition of ideals is ubiquitous, the case for general modules is less well-known. I will give a comprehensive exposition of primary decomposition for modules, starting with a gentle review of practical symbolic algorithms, leading up to recent developments including differential primary decomposition and numerical primary decomposition. Based on joint works with Yairon Cid-Ruiz, Marc Harkonen, Robert Krone, and Anton Leykin.