Geometric Complexity Theory IV: Nonstandard Quantum Group for the Kronecker Problem(Memoirs of the American Mathematical Society)

几何复杂性理论 IV:克罗内克问题的非标准量子集团(丛书)

组合数学

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出版时间
2015年05月30日
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ISBN
9781470410117
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页      码
160
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英文
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The Kronecker coefficient (g_{lambda mu nu}) is the multiplicity of the (GL(V)times GL(W))-irreducible (V_lambda otimes W_mu) in the restriction of the (GL(X))-irreducible (X_nu) via the natural map (GL(V)times GL(W) to GL(V otimes W)), where (V, W) are (mathbb{C})-vector spaces and (X = V otimes W). A fundamental open problem in algebraic combinatorics is to find a positive combinatorial formula for these coefficients. The authors construct two quantum objects for this problem, which they call the nonstandard quantum group and nonstandard Hecke algebra. They show that the nonstandard quantum group has a compact real form and its representations are completely reducible, that the nonstandard Hecke algebra is semisimple, and that they satisfy an analog of quantum Schur-Weyl duality.
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