Abstract
The Murnaghan-Nakayama rule expresses the product of a Schur function with a Newton power sum in the basis of Schur functions. We establish a version of the Murnaghan- Nakayama rule for Schubert polynomials and a version for the quantum cohomology ring of the Grassmannian. These rules compute all intersections of Schubert cycles with tautological classes coming fromthe Chern character. Like the classical rule, both rules are multiplicity-free signed sums.
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Research of Morrison was supported by the Swiss National Science Foundation through grant SNF-200021-143274 and theMSRI.
Research of Sottile was supported by the NSF through grants DMS-1001615 and DMS-1501370 and the MSRI.
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Morrison, A., Sottile, F. Two Murnaghan-Nakayama Rules in Schubert Calculus. Ann. Comb. 22, 363–375 (2018). https://doi.org/10.1007/s00026-018-0387-z
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DOI: https://doi.org/10.1007/s00026-018-0387-z