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Seminar by Algebra Department
November 22, 2011 15:00, Moscow, Steklov Mathematical Institute, Room 540 (8 Gubkina)
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Some varieties related to the commuting variety of a complex reductive ie algebra
J.-Y. Charbonnel |
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Abstract:
Recently, V. Ginzburg has wrote an article about the isospectral commuting variety. In my talk, I will discuss
about some varieties which are constructed analogously to the isospectral commuting varieties. These varieties are subvarieties of varieties having very simple desingularizations. For instance, in a certain sense, the nullcone of the square cartesian of a reductive Lie algebra is related to the isospectral commuting variety. I will try to give some properties of the normalizations of these varities. This a joint work with Mouchira Zaiter and it is still in progress.
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