J. Benitez
Departamento de Matematica Aplicada, Instituto de Matematica Multidisciplinar, Universidad Politecnica de Valencia, Valencia 46022, Spain.
[ 1 ] - Involutiveness of linear combinations of a quadratic or tripotent matrix and an arbitrary matrix
In this article, we characterize the involutiveness of the linear combination of the forma1A1 +a2A2 when a1, a2 are nonzero complex numbers, A1 is a quadratic or tripotent matrix,and A2 is arbitrary, under certain properties imposed on A1 and A2.