Thu, August 6, 2020
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7:00pm [7:00pm] Gunnar Fløystad, University of Bergen.
Description:
Time: 7pm (Gate opens 6:45 pm), Thursday, August 6, 2020. Google meet link: meet.google.com/fxz-cxqe-rrs. Speaker: Gunnar Fløystad, University of Bergen. Phone: (US) +1 541-714-3865‬ PIN: ‪750 178 024‬#. Title: Stanley-Reisner ideals from poset partitions. Abstract: We show how one to classes of order preserving maps P -> N, where P is a finite poset, and N the natural numbers may associate wide classes of Stanley-Reisner ideals. These ideals have very good and interesting properties with respect to: 1. Free resolutions 2. Associated simplicial complexes which are balls and spheres. 3. Their deformation theory to varieties.