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Showing 2009 · math.COShow all
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math.CO2009★ 3 cited
Regularity via topology of the lcm-lattice for -free graphs
Eran Nevo
We study the topology of the lcm-lattice of edge ideals and derive upper bounds on the Castelnuovo-Mumford regularity of the ideals. In this context it is natural to restrict to th…
math.CO2009★ 1 cited
A Combinatorial Approach to Multiplicity-Free Richardson Subvarieties of the Grassmannian
Michelle Snider
We consider Buch's rule for K-theory of the Grassmannian, in the Schur multiplicity-free cases classified by Stembridge. Using a result of Knutson, one sees that Buch's coefficient…