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pro vyhledávání: '"Wei-Wei Xu"'
Publikováno v:
Linear Algebra and its Applications. 562:15-43
On generalized eigenvalue perturbation bounds for diagonalizable matrix pairs upper bounds are discussed all the time. In this paper we mainly consider not only upper bounds but also lower bounds of perturbation of generalized eigenvalues for diagona
Autor:
Wei-wei Xu, Lei Zhu
Publikováno v:
Linear Algebra and its Applications. 561:204-206
This paper is devoted to dealing with a flaw that existed in a recent paper (Xu et al. 2014). We give a new proof, which is a correction of the original Method 2.1 and proof in Xu et al. (2014).
Autor:
Hao Liu, Wei-wei Xu
Publikováno v:
Linear Algebra and its Applications. 458:626-637
In this paper we establish a modified general modulus-based matrix splitting iteration method for solving the large sparse linear complementarity problems, and present the convergence analysis when the system matrix is an H + -matrix. Our result alwa
Autor:
Wen-Huan Wang, Wei-Wei Xu
Publikováno v:
Linear Algebra and its Applications. 446:314-328
Two new transformations are proposed to compare the Estrada indices between two graphs. Let Ψ n , m be the set of the ( n , m ) -graphs, where n and m are the numbers of vertices and edges, respectively. The graphs with the maximal Estrada indices i
Publikováno v:
Linear Algebra and its Applications. 434(2):480-489
In this paper, we obtain the additive and multiplicative perturbation bounds for the Moore-Penrose inverse under the unitarily invariant norm and the Q - norm, which improve the corresponding ones in [P.A. Wedin, Perturbation theory for pseudo-invers