The AROMATH seminar will usually happen on Tuesday at 10h30-11h30 every two weeks, except for a few deviations.
The presentations will typically take place at Inria Sophia Antipolis, Byron Blanc 106, and also online.
To join online, at https://cutt.ly/aromath or with a web browser at https://cutt.ly/aromath-web
use meeting ID: 828 5859 7791, passcode: 123
Roser Homs Pons -- How far is an Artin ring from being Gorenstein?
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8 November 2017
How far is an Artin ring from being Gorenstein?
Roser Homs Pons (Univ. Barcelona)
Abstract: In this talk, we will introduce the notion of Gorenstein colength of Artin local k-algebras to measure how far are such objects from being Gorenstein. Then we will see a characterization of k-algebras of low colengths (0, 1 and 2) in terms of their inverse systems and discuss the problem for higher colengths.
