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Mostrando ítems 1-3 de 3

On nonsingularity of combinations of three group invertible matrices and three tripotent matrices

Benítez López, Julio; Sarduvan, Murat; Ülker, Sedat; Özdemir, Halim (Taylor & Francis, 2013)

Let T=c1T1+c2T2+c3T3- c4(T1T2+T3T1+T2T3), where T1, T2, T3 are three n x n tripotent matrices and c1, c2, c3, c4 are complex numbers with c1, c2, c3 nonzero. In this article, necessary and sufficient conditions for the ...
On nonsingularity of combinations of two group invertible matrices and two tripotent matrices

Liu, Xiaoji; Wu, Shuxia; Benítez López, Julio (Taylor & Francis, 2011)

Let T(1) and T(2) be two n x n tripotent matrices and c(1), c(2) two nonzero complex numbers. We mainly study the nonsingularity of combinations T = c(1)T(1) + c(2)T(2) - c(3)T(1)T(2) of two tripotent matrices T(1) and ...
On the spectra of some combinations of two generalized quadratic matrices

Petik, Tugba; OZDEMIR, Halim; Benítez López, Julio (Elsevier, 2015-10)

[EN] Let A and B be two generalized quadratic matrices with respect to idempotent matrices P and Q, respectively, such that (A − αP)(A − βP) = 0, AP = PA = A, (B − γ Q)(B − δQ) = 0, BQ = QB = B, PQ = QP, AB = BA, and (A ...

Mostrando ítems 1-3 de 3