1. An Affine Approach to Peterson Comparison.
- Author
-
Chen, Linda, Milićević, Elizabeth, and Morse, Jennifer
- Abstract
The Peterson comparison formula proved by Woodward relates the three-pointed Gromov-Witten invariants for the quantum cohomology of partial flag varieties to those for the complete flag. Another such comparison can be obtained by composing a combinatorial version of the Peterson isomorphism with a result of Lapointe and Morse relating quantum Littlewood-Richardson coefficients for the Grassmannian to k-Schur analogs in the homology of the affine Grassmannian obtained by adding rim hooks. We show that these comparisons on quantum cohomology are equivalent, up to Postnikov's strange duality isomorphism. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF