Results 21 to 30 of about 1,573,587 (265)

The symmetric inverse M-matrix completion problem

open access: yesLinear Algebra and its Applications, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Johnson, Charles R., Smith, Ronald L.
openaire   +1 more source

Spektrum Laplace pada graf kincir angin berarah (Q_k^3)

open access: yesMajalah Ilmiah Matematika dan Statistika, 2022
Suppose that 0 = µ0 ≤ µ1 ≤ ... ≤ µn-1 are eigen values of a Laplacian matrix graph with n vertices and m(µ0), m(µ1), …, m(µn-1) are the multiplicity of each µ, so the Laplacian spectrum of a graph can be expressed as a matrix 2 × n whose line elements ...
Melly Amaliyanah   +2 more
doaj   +1 more source

M-matrix generalized inverses of M-matrices

open access: yesLinear Algebra and its Applications, 1997
The condition when the group inverse of the associated singular irreducible \(M\)-matrix corresponding to a nonnegative, irreducible and stochastic matrix will be an \(M\)-matrix is that this matrix lies in a small wedge about a rank one nonnegative matrix.
Chen, Yonghong, Neumann, M.
openaire   +2 more sources

The M-matrix group inverse problem for distance-biregular graphs

open access: yesComputational and Applied Mathematics, 2023
AbstractIn this work, we obtain the group inverse of the combinatorial Laplacian matrix of distance-biregular graphs. This expression can be obtained trough the so-called equilibrium measures for sets obtained by deleting a vertex. Moreover, we show that the two equilibrium arrays characterizing distance-biregular graphs can be expressed in terms of ...
Abiad Monge, Aida   +3 more
openaire   +3 more sources

Square matrices with the inverse diagonal property

open access: yesKuwait Journal of Science
We identify the class of real square invertible matrices A for which the signs of the diagonal entries of A−1 match those of A, and begin their study. We say such matrices have the inverse diagonal property (IDP).
Susana Furtado   +3 more
doaj   +1 more source

Confinement/deconfinement transition in the D0-brane matrix model — A signature of M-theory?

open access: yesJournal of High Energy Physics, 2022
We study the confinement/deconfinement transition in the D0-brane matrix model (often called the BFSS matrix model) and its one-parameter deformation (the BMN matrix model) numerically by lattice Monte Carlo simulations.
Monte Carlo String/M-theory collaboration (MCSMC)   +8 more
doaj   +1 more source

Sign determinacy of M-matrix minors

open access: yesLinear Algebra and its Applications, 1987
Let A be a (singular or non-singular) M-matrix, and let G(A) denote its undirected graph. The main result is that if the longest simple cycle of G(A) has length not exceeding 3 then the sign of any minor of A depends only on G(A) and not on the magnitude of the entries of A.
Johnson, Charles R.   +3 more
openaire   +2 more sources

Several new inequalities for the minimum eigenvalue of M-matrices

open access: yesJournal of Inequalities and Applications, 2016
Several convergent sequences of the lower bounds for the minimum eigenvalue of M-matrices are given. It is proved that these sequences are monotone increasing and improve some existing results.
Jianxing Zhao, Caili Sang
doaj   +1 more source

A Graph Classification Method Based on Support Vector Machines and Locality-Sensitive Hashing

open access: yesIEEE Access
Graphs classification is a relevant problem that arises in many disciplines. Using graphs directly instead of vectorization allows exploiting the intrinsic representations of the data.
Maria D. Gonzalez-Lima   +2 more
doaj   +1 more source

Completions of M-matrix patterns

open access: yesLinear Algebra and its Applications, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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