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math.QA1999
Lecture notes on quantum cohomology of the flag manifold
Sergey Fomin
This is an exposition of some recent developments related to the object in the title, particularly the combinatorial computation of the (genus 0) Gromov-Witten invariants of the fl…
math.QA1998
Mixed Bruhat operators and Yang-Baxter equations for Weyl groups
Francesco Brenti, Sergey Fomin, Alexander Postnikov
We introduce and study a family of operators which act in the span of a Weyl group and provide a multi-parameter solution to the quantum Yang-Baxter equations of the correspond…