Séminaire Lotharingien de Combinatoire, 93B.12 (2025), 12 pp.
Raj Gandhi
Deforming the Motivic Segre Classes of Schubert Cells in the Grassmannian
Abstract.
We β-deform the motivic Segre classes of Schubert cells in the d-step flag variety, conjecturing that the β-deformations come from analogues of stable envelopes in the equivariant connective K-ring of the cotangent bundle of the flag variety. Our main result is a combinatorial formula for the structure constants in the β-deformed basis in the d=1 case using Knutson-Tao puzzles.
Received: November 15, 2024.
Accepted: February 15, 2025.
Final version: April 1, 2025.
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