Mathematics – Representation Theory
Scientific paper
2004-07-27
Advances in Mathematics; Vol 196/2 pp 531-564 (2005)
Mathematics
Representation Theory
34 pages
Scientific paper
This paper focuses on the $GL_n$ tensor product algebra, which encapsulates the decomposition of tensor products of arbitrary finite dimensional irreducible representations of $GL_n$. We will describe an explicit basis for this algebra. This construction relates directly with the combinatorial description of Littlewood-Richardson coefficients in terms of Littlewood-Richardson tableaux. Philosophically, one may view this construction as a recasting of the Littlewood-Richardson rule in the context of classical invariant theory.
Howe Roger E.
Tan Eng Chye
Willenbring Jeb F.
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