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math.RA2007
Fusion algebras with negative structure constants
Michael Cuntz
We introduce fusion algebras with not necessarily positive structure constants and without identity element. We prove that they are semisimple when tensored with and t…
math.RA2007★ 10 cited
On closed rational functions in several variables
A. P. Petravchuk, O. G. Iena
Let k be an algebraically closed field of characteristic zero. An element F from k(x_1,...,x_n) is called a closed rational function if the subfield k(F) is algebraically closed in…