Faculty of Science
Permanent URI for this community
Browse
Browsing Faculty of Science by Subject "05E05"
Now showing 1 - 1 of 1
Results Per Page
Sort Options
Item Open Access A quantum Murnaghan--Nakayama rule for the flag manifold(2024-06-08) Benedetti, Carolina; Bergeron, Nantel; Colmenarejo, Laura; Saliola, Franco; Sottile, FrankIn this paper, we give a rule for the multiplication of a Schubert class by a tautological class in the (small) quantum cohomology ring of the flag manifold. As an intermediate step, we establish a formula for the multiplication of a Schubert class by a quantum Schur polynomial indexed by a hook partition. This entails a detailed analysis of chains and intervals in the quantum Bruhat order. This analysis allows us to use results of Leung--Li and of Postnikov to reduce quantum products by hook Schur polynomials to the (known) classical product.