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Seminar

Local cohomology of modules of covariants March 20, 2013 (09:00AM PDT - 10:30AM PDT)
Location: MSRI: Baker Board Room
Speaker(s) Michel van den Bergh (Limburgs Universitair Centrum)
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There is an old conjecture by Stanley which gives a numerical
criterion for a module of covariants to be Cohen-Macaulay.
To prove this conjecture one has to be able to compute, or
at least estimate the local cohomology with support in the nullcone,
a question that has regained interest recently. For this reason I will
discuss my old work on this in which I give a precise (but complicated)
formula for the local cohomology with support in the nullcone as a
G-equivariant D-module, under some reasonably generic conditions.

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