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Listar por palabra clave "LDU factorization"

Mostrando ítems 1-2 de 2

Full rank factorization in quasi-LDU form of totally nonpositive rectangular matrices

Cantó Colomina, Rafael; Ricarte Benedito, Beatriz; Urbano Salvador, Ana María (Elsevier, 2014-01-01)

Let A = (a(ij)) is an element of R-nxm be a totally nonpositive matrix with rank(A) = r <= min{n, m} and a(11) = 0. In this paper we obtain a characterization in terms of the full rank factorization in quasi-LDU form, that ...
Quasi-LDU factorization of nonsingular totally nonpositive matrices

Cantó Colomina, Rafael; Ricarte Benedito, Beatriz; Urbano Salvador, Ana María (Elsevier, 2013-08-15)

Let A = (a(ij)) is an element of R-nxn be a nonsingular totally nonpositive matrix. In this paper we describe some properties of these matrices when a(11) = 0 and obtain a characterization in terms of the quasi-LDU ...

Mostrando ítems 1-2 de 2