This paper provides an analogue to the well-known theorem that commuting matrices over the complex numbers have an eigenvector in common. This analogue applies to the case where it is known only that ...
Journal of Operator Theory, Vol. 55, No. 2 (Spring 2006), pp. 295-310 (16 pages) We consider a condition for non-degenerate commuting squares of matrix algebras (finite dimensional von Neumann ...
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