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Prime factors of quantum Schubert cell algebras and clusters for quantum Richardson varieties by Lenagan, T. H.; Yakimov, M. T. is a scholarly article available to read on EtoBox.

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The understanding of the topology of the spectra of quantum Schubert cell algebras hinges on the description of their prime factors by ideals invariant under the maximal torus of the ambient Kac-Moody group. We give an explicit description of these prime quotients by expressing their Cauchon generators in terms of sequences of normal elements in chains of subalgebras. Based on this, we construct large families of quantum clusters for all of these algebras and the quantum Richardson varieties associated to arbitrary symmetrizable Kac-Moody algebras and all pairs of Weyl group elements. Along the way we develop a quantum version of the Fomin-Zelevinsky twist map for all quantum Richardson varieties. Furthermore, we establish an explicit relationship between the Goodearl-Letzter and Cauchon approaches to the descriptions of the spectra of symmetric CGL extensions.

Author

Lenagan, T. H.; Yakimov, M. T.

Published

2015

Language

EN