The Kronecker coefficient is the multiplicity of the -irreducible in the restriction of the -irreducible via the natural map , where are -vector spaces and . 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.... Geometric analysis, to TATIANA TORO, Department of Mathematics, University of Washington, Box 354350; e-mail: toroanbsp;...
|Title||:||Geometric Complexity Theory IV: Nonstandard Quantum Group for the Kronecker Problem|
|Author||:||Jonah Blasiak, Ketan D. Mulmuley, Milind Sohoni|
|Publisher||:||American Mathematical Soc. - 2015-04-09|