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Comparison of motivic Chern classes and stable envelopes for cotangent bundles (2006.02403v2)
Published 3 Jun 2020 in math.AG
Abstract: We consider a complex smooth projective variety equipped with an action of an algebraic torus with a finite number of fixed points. We compare the motivic Chern classes of Bia{\l}ynicki-Birula cells with the $K$-theoretic stable envelopes of cotangent bundle. We prove that under certain geometric assumptions satisfied e.g. by homogenous spaces these two notions coincide up to normalization.
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