Crystal structure on Gelfand-Tsetlin-Zhelobenko patterns

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2020-01-01
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Kingston, O'Neill
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Jonas T Hartwig
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Mathematics
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We begin by presenting the crystal structure of finite-dimensional irreducible representations of the special linear Lie algebra in terms of Gelfand-Zeitlin patterns. We then define a crystal structure using the set of symplectic Zhelobenko patterns, parametrizing bases for finite-dimensional irreducible representations of sp4. This is obtained by a bijection with Kashiwara-Nakashima tableaux and the symplectic jeu de taquin of Sheats and Lecouvey. We offer some conjectures on the generalization of this structure to rank n as well as a bijection and crystal structure in certain special cases.

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Fri May 01 00:00:00 UTC 2020