Results 11 to 20 of about 1,769,588 (220)
Accurate computation of all eigenvalues of a totally nonnegative matrix by the Cauchon algorithm
The Electronic Journal of Linear AlgebraTotally nonnegative matrices are considered, i.e., matrices having all their minors nonnegative. Any $n\times n$ nonsingular totally nonnegative matrix can be represented as the product of $2n-1$ entry-wise nonnegative bidiagonal matrices. The $n^2$ nontrivial entries of this factorization parameterize the set of the nonsingular totally nonnegative ...
Fatima Rasheed +2 more
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On the effect of the perturbation of a nonnegative matrix on its Perron eigenvector [PDF]
, 1982 Elsner L, Johnson CR, Neumann MM. On the effect of the perturbation of a nonnegative matrix on its Perron eigenvector. Czechoslovak Mathematical Journal.
Elsner, Ludwig F. +5 more
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On Perron complements of totally nonnegative matrices [PDF]
, 2001 An n×n matrix is called totally nonnegative if every minor of A is nonnegative. The problem of interest is to describe the Perron complement of a principal submatrix of an irreducible totally nonnegative matrix.
Fallat, Shaun M. +3 more
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Totally nonnegative (0,1)-matrices [PDF]
, 2010 We investigate (0,1)-matrices which are totally nonnegative and therefore which have all of their eigenvalues equal to nonnegative real numbers. Such matrices are characterized by four forbidden submatrices (of orders 2 and 3).
Brualdi, Richard A., Kirkland, Steve
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Directional clustering through matrix factorization [PDF]
, 2016 This paper deals with a clustering problem where feature vectors are clustered depending on the angle between feature vectors, that is, feature vectors are grouped together if they point roughly in the same direction.
Blumensath, Thomas
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The Hadamard core of the totally nonnegative matrices [PDF]
, 2001 An m-by-n matrix A is called totally nonnegative if every minor of A is nonnegative. The Hadamard product of two matrices is simply their entry-wise product.
Fallat, Shaun M. +5 more
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Minimal positive realizations of transfer functions with nonnegative multiple poles [PDF]
, 2005 This note concerns a particular case of the minimality problem in positive system theory. A standard result in linear system theory states that any nth-order rational transfer function of a discrete time-invariant linear single-input-single-output (SISO)
Matolcsi, Máté, Nagy, B.
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A fast algorithm for matrix balancing [PDF]
, 2013 As long as a square nonnegative matrix A contains sufficient nonzero elements, then the matrix can be balanced, that is we can find a diagonal scaling of A that is doubly stochastic. A number of algorithms have been proposed to achieve the balancing, the
Knight, Philip, Ruiz, Daniel
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Advanced Science, EarlyView.Highly overlapping fluorescent signals become distinguishable in photon‐limited living organisms via advanced imaging with intelligent reconstruction. The resulting in vivo hyperspectral imaging capability reveals nanoplastic uptake and circulation in live zebrafish, providing a new approach for studying complex biological and environmental processes ...
Renjian Li +11 more
wiley +1 more source
Irreducible totally nonnegative matrices with a prescribed Jordan structure [PDF]
, 2021 [EN] Let A be an irreducible totally nonnegative matrix with rank r and principal rank p, that is, all minors of A are nonnegative, r is the size of the largest invertible square submatrix of A and p is the size of its largest invertible principal ...
Cantó Colomina, Rafael +2 more
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