# Flag Gromov-Witten invariants via crystals

Abstract : We apply ideas from crystal theory to affine Schubert calculus and flag Gromov-Witten invariants. By defining operators on certain decompositions of elements in the type-$A$ affine Weyl group, we produce a crystal reflecting the internal structure of Specht modules associated to permutation diagrams. We show how this crystal framework can be applied to study the product of a Schur function with a $k$-Schur function. Consequently, we prove that a subclass of 3-point Gromov-Witten invariants of complete flag varieties for $\mathbb{C}^n$ enumerate the highest weight elements under these operators.
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https://hal.inria.fr/hal-01207548
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### Citation

Jennifer Morse, Anne Schilling. Flag Gromov-Witten invariants via crystals. 26th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2014), 2014, Chicago, United States. pp.489-500, ⟨10.46298/dmtcs.2417⟩. ⟨hal-01207548⟩

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