51 research outputs found

    On flagged KK-theoretic symmetric polynomials

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    We provide a fermionic description of flagged skew Grothendieck polynomials, which can be seen as a KK-theoretic counterpart of flagged skew Schur polynomials. Our proof relies on the Jacobi-Trudi type formula established by Matsumura. This result generalizes the author's previous works on a fermionic description of skew Grothendieck polynomials and multi-Schur functions.Comment: 8page
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