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Current Seminar

March 26,2014

Yuri Bahturin (MUN) "Classification of group gradings on nilpotent algebras"

Abstract. In our earlier talks we have shown how algebraic groups can be used to describe group gradings on certain nilpotent Lie algebras. In this talk, on the one hand, we would like to present the classification of these gradings, up to equivalence. We will also show that, on nilpotent algebras that are relatively free, some of these results can be obtained by much more elementary methods.

HH-3017 at 1:00 p.m.


February 26, 2014

Yiqiang Zhou (MUN) "A Theorem on diagonalization of idempotent matrices".

Abstract. I am going to introduce a theorem on diagonalization of idempotent matrices and explain how to use it to solve a matrix decomposition problem.

HH-3017 at 1:00 p.m.