Mathematics – Representation Theory
Scientific paper
2007-03-20
Mathematics
Representation Theory
Title changed. Final version, to appear in appear in Journal of Pure and Applied Algebra
Scientific paper
We consider symmetric d-linear forms of dimension n over an algebraically closed field k of characteristic 0. The "center" of a form is the analogous of the space of symmetric matrices of a bilinear form. For d>2 the center is a commutative subalgebra of $\mathbf{M}_n(k)$. The automorphism group of the form acts naturally on the center. We give a description of this group via this action.
O'Ryan M.
Ryom-Hansen Steen
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