Matrix product formula for Macdonald polynomials
Matrix product formula for Macdonald polynomials
复制标题
麦克唐纳多项式的矩阵乘积公式
DOI:
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
M. Wheeler
中科院分区:
文献类型:
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作者:
L. Cantini;J. Gier;M. Wheeler
We derive a matrix product formula for symmetric Macdonald polynomials. Our results are obtained by constructing polynomial solutions of deformed Knizhnik–Zamolodchikov equations, which arise by considering representations of the Zamolodchikov–Faddeev and Yang–Baxter algebras in terms of t-deformed bosonic operators. These solutions are generalized probabilities for particle configurations of the multi-species asymmetric exclusion process, and form a basis of the ring of polynomials in n variables whose elements are indexed by compositions. For weakly increasing compositions (anti-dominant weights), these basis elements coincide with non-symmetric Macdonald polynomials. Our formulas imply a natural combinatorial interpretation in terms of solvable lattice models. They also imply that normalizations of stationary states of multi-species exclusion processes are obtained as Macdonald polynomials at q = 1.