A new construction of the asymptotic algebra associated to the $q$-Schur algebra
| Autor: | Brunat, Olivier, Neunhöffer, Max |
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| Rok vydání: | 2008 |
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| Druh dokumentu: | Working Paper |
| Popis: | We denote by A the ring of Laurent polynomials in the indeterminate v and by K its field of fractions. In this paper, we are interested in representation theory of the "generic" q-Schur algebra S_q(n,r) over A. We will associate to every non-degenerate symmetrising trace form \tau on KS_q(n,r) a subalgebra J_{\tau} of KS_q(n,r) which is isomorphic to the "asymptotic" algebra \J(n,r)_A defined by J. Du. As a consequence, we give a new criterion for James' conjecture. |
| Databáze: | arXiv |
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