Generating functions for the universal hall-littlewood p- and q-functions

Masaki Nakagawa, Hiroshi Naruse

Research output: Contribution to journalArticlepeer-review

Abstract

Recently, P. Pragacz described the ordinary Hall-Littlewood P-polynomials by means of push-forwards (Gysin maps) from flag bundles in the ordinary cohomol- ogy theory. Together with L. Darondeau, he also gave push-forward formulas (Gysin formulas) for all flag bundles of types A, B, C and D in the ordinary cohomology theory. In this paper, we introduce a generalization of the ordinary Hall-Littlewood P- and Q-polynomials, which we call the universal (factorial) Hall-Littlewood P- and Q-functions, and characterize them in terms of Gysin maps from flag bundles in the complex cobordism theory. We also generalize the (type A) push-forward formula due to Darondeau-Pragacz to the complex cobordism theory. As an application of our Gysin formulas in complex cobordism, we give generating functions for the uni- versal Hall-Littlewood P- and Q-functions and their factorial analogues. Using our generating functions, classical determinantal and Pfaffian formulas for Schur S- and Q-polynomials, and their K-theoretic or factorial analogues can be obtained in a simple and unified manner.

MSC Codes 05E05, 14M15, 55N20, 55N22, 57R77

Original languageEnglish
JournalUnknown Journal
Publication statusPublished - May 13 2017

Keywords

  • and Q-functions
  • Com-plex cobordism theory
  • Gysin formulas
  • Hall-Littlewood P- and Q-functions
  • P-
  • Schur S-

ASJC Scopus subject areas

  • General

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