Schubert Classes in the Equivariant K-Theory and Equivariant Cohomology of the Grassmannian

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/106148We give positive formulas for the restriction of a Schubert Class to a T-fixed point in the equivariant K-theory and equivariant cohomology of the Grassmannian. Our formulas rely on a result of Kodiyalam-Raghavan and Kreiman-Lakshmibai, which gives an equivariant Grobner degeneration of a Schubert variety in the neighborhood of a T-fixed point of the Grassmannian.27 pages. Version 2 contains more discussion of nonintersecting path families and additional referencesAlgebraic GeometryCombinatorics14M15; 05E10Schubert Classes in the Equivariant K-Theory and Equivariant Cohomology of the Grassmanniantext