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SUMMARY:Federico Galetto (Cleveland State)
DTSTART:20201026T161500Z
DTEND:20201026T171500Z
DTSTAMP:20260423T021649Z
UID:GASC/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GASC/4/">Sta
 r configurations and symmetric shifted ideals</a>\nby Federico Galetto (Cl
 eveland State) as part of Geometry\, Algebra\, Singularities\, and Combina
 torics\n\n\nAbstract\nThe ideals of so-called star configurations have bee
 n studied in connection to commutative\nalgebra and combinatorics. The pro
 blem of describing the Betti numbers of the symbolic\npowers of these idea
 ls was recently settled. I will present a solution to this problem obtaine
 d\nin joint work with Biermann\, De Alba\, Murai\, Nagel\, O’Keefe\, R 
 ̈omer\, and Seceleanu. Our\nresults rely on the natural action of a symme
 tric group to study a larger class of ideals that\nwe call ’symmetric sh
 ifted ideals’.\n
LOCATION:https://researchseminars.org/talk/GASC/4/
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