Results 61 to 70 of about 62,500 (93)

Bidiagonal Factorization of Banded Recursion Matrices for Mixed-Type Multiple Orthogonal Polynomials

39 ...
Branquinho, Amílcar, Foulquié-Moreno, Ana, Mañas, Manuel   +2 more
openaire   +2 more sources

Spectral theory for Markov chains with transition matrix admitting a stochastic bidiagonal factorization

The recently established spectral Favard theorem for bounded banded matrices admitting a positive bidiagonal factorization is applied to a broader class of Markov chains with bounded banded transition matrices, extending beyond the classical birth-and-death setting, to those that allow a positive stochastic bidiagonal factorization. In the finite case,
Branquinho, Amílcar, Foulquié-Moreno, Ana, Mañas, Manuel   +2 more
openaire   +2 more sources

Unbounded banded matrices, shifted positive bidiagonal factorizations, and mixed-type multiple orthogonality

This work extends Favard-type spectral representations for banded matrices $T$ beyond the bounded setting. It assumes that, for every $N\in\mathbb N_0$, there exists a shift $s_N\ge 0$ such that the shifted truncation $A_N:= T^{[N]}+s_N I_{N+1}$ admits a positive bidiagonal factorization (PBF).
Branquinho, Amílcar, Foulquié-Moreno, Ana, Mañas, Manuel   +2 more
openaire   +2 more sources

Nonnegative factorization and the maximum edge biclique problem [PDF]

Nonnegative matrix factorization (NMF) is a data analysis technique based on the approximation of a nonnegative matrix with a product of two nonnegative factors, which allows compression and interpretation of nonnegative data. In this paper, we study the
GILLIS, Nicolas, GLINEUR, François
core  

Algorithm to Construct a Tridiagonal Matrix Factored by Bidiagonal Matrices with Prescribed Eigenvalues and Specified Entries

Journal of Mathematical and Fundamental Sciences
This paper presents an algorithm to construct a tridiagonal matrix factored by bidiagonal matrices with prescribed eigenvalues and specified matrix entries. The proposed algorithm addresses inverse eigenvalue problems (IEPs) constrained by LR decomposition.
openaire   +2 more sources

Collinear divergences and factorization in perturbative QCD [PDF]

, 2010
The issue of choosing a factorization scale in perturbative QCD is examined in detail. First a previously defined factorization scheme called the collinear scheme is implemented on Higgs production by bottom quark fusion, and then extended to Higgs ...
Putman, Robert E.
core  

Development of a Real Time Sparse Non-Negative Matrix Factorization Module for Cochlear Implants by Using xPC Target

, 2013
Cochlear implants (CIs) require efficient speech processing to maximize information transmission to the brain, especially in noise. A novel CI processing strategy was proposed in our previous studies, in which sparsity-constrained non-negative matrix ...
Mark Lutman, Bleeck, S., Hu, Hongmei, Lutman, M.E., Agamemnon Krasoulis, Krasoulis, A., Hongmei Hu, Stefan Bleeck   +7 more
core   +1 more source

Trajectory Definition with High Relative Accuracy (HRA) by Parametric Representation of Curves in Nano-Positioning Systems. [PDF]

Micromachines (Basel), 2019
Pérez LD, Serrano BR, García JAA, Fabra JAYE, Maza EM, Gracia MT.   +5 more
europepmc   +1 more source

Recurrence relations for orthogonal polynomials for PDEs in polar and cylindrical geometries. [PDF]

Springerplus, 2016
Richardson M, Lambers JV.
europepmc   +1 more source

Fast transforms: Banded matrices with banded inverses. [PDF]

Proc Natl Acad Sci U S A, 2010
Strang G.
europepmc   +1 more source