Let $g_{1},g_{2},\ldots ,g_{n}$ be the generators of the free group ${\bf F}_{n}$ and denote by λ its left regular representation. A formula for norms of operators ...

This is a preview. Log in through your library . Abstract The purpose of this paper is to use an estimation of minimum value of a matrix norm to improve some maximum principles given by I.A. Rus in ...