Polynomial representations of the symplectic groups |
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Authors: | W H Klink T Ton-That |
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Institution: | (1) Department of Physics and Astronomy, The University of Iowa, 52242 Iowa City, IA, U.S.A.;(2) Department of Mathematics, The University of Iowa, 52242 Iowa City, IA, U.S.A. |
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Abstract: | The irreducible finite dimensional representations of the symplectic groups are realized as polynomials on the irreducible representation spaces of the corresponding general linear groups. It is shown that the number of times an irreducible representation of a maximal symplectic subgroup occurs in a given representation of a symplectic group, is related to the betweenness conditions of representations of the corresponding general linear groups. Using this relation, it is shown how to construct polynomial bases for the irreducible representation spaces of the symplectic groups in which the basis labels come from the representations of the symplectic subgroup chain, and the multiplicity labels come from representations of the odd dimensional general linear groups, as well as from subgroups. The irreducible representations of Sp(4) are worked out completely, and several examples from Sp(6) are given. |
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Keywords: | 22C35 22E45 22E70 81C40 |
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