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Showing 2003 · math.RTShow all
2 papers · 2 filters
math.RT2003
Total positivity in the De Concini-Procesi compactification
Xuhua He
We study the nonnegative part \bar{G_{>0}} of the De Concini-Procesi compactification of a reductive algebraic group G, as defined by Lusztig. Using positivity properties of the ca…
math.RT2003★ 1 cited
Affine Weyl groups in K-theory and representation theory
Cristian Lenart, Alexander Postnikov
We give an explicit combinatorial Chevalley-type formula for the equivariant K-theory of generalized flag varieties G/P which is a direct generalization of the classical Chevalley…