Algebra Seminar

09/21/2018 - 1:30pm to 2:30pm
POT 745
Speaker(s) / Presenter(s): 
Jennifer Kenkel, University of Utah
Title: Local Cohomology of Thickenings
Abstract: Let $R$ be a standard graded polynomial ring that is finitely generated over a field, and let $I$ be a homogenous prime ideal of $R$. Bhatt, Blickle, Lyubeznik, Singh, and Zhang examined the local cohomology of $R/I^t$, as $t$ goes to infinity, which led to the development of an asymptotic invariant by Dao and Montaño. I will discuss their results and give concrete examples of the calculation of this new invariant in the case of determinantal rings. 
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