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СЕМИНАРЫ |
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Root systems of torus graphs Shintaro Kuroki |
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Аннотация: Torus manifold is a compact oriented – vertices are fixed points; – edges are one dimensional orbits; – edges are labelled by tangential representations around fixed points. This labelled graph is called a torus graph. It is known that we can compute the equivariant cohomology of torus manifold by using combinatorial structure of torus graph. In this talk, we define root systems on torus graph and characterize what kind of compact connected non-abelian Lie group (whose maximal torus is This is a joint work with M. Masuda. Язык доклада: английский |