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Semiclassical limits of quantum affine spaces
Goodearl, KR Letzter, ES
Goodearl, KR
Letzter, ES
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2009-06-01
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10.1017/S0013091507000910
Abstract
Semiclassical limits of generic multi-parameter quantized coordinate rings A=Oq(kn) of affine spaces are constructed and related to A, for k an algebraically closed field of characteristic zero and q a multiplicatively antisymmetric matrix whose entries generate a torsion-free subgroup of k. A semiclassical limit of A is a Poisson algebra structure on the corresponding classical coordinate ring R=O(kn), and results of Oh, Park, Shin and the authors are used to construct homeomorphisms from the Poisson-prime and Poisson-primitive spectra of R onto the prime and primitive spectra of A. The Poisson-primitive spectrum of R is then identified with the space of symplectic cores in kn in the sense of Brown and Gordon, and an example is presented (over ℂ) for which the Poisson-primitive spectrum of R is not homeomorphic to the space of symplectic leaves in kn. Finally, these results are extended from quantum affine spaces to quantum affine toric varieties. © Edinburgh Mathematical Society 2009.
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Cambridge University Press (CUP)
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Proceedings of the Edinburgh Mathematical Society
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