A cohomology free description of eigencones in type A, B and C
نویسنده
چکیده
Let K be a connected compact Lie group. The triples (O1, O2, O3) of adjoint K-orbits such that O1+O2+O3 contains 0 are parametrized by a closed convex polyhedral cone. This cone is denoted Γ(K) and called the eigencone of K. For K simple of type A, B or C we give an inductive cohomology free description of the minimal set of linear inequalities which characterizes Γ(K).
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تاریخ انتشار 2009