Results 11 to 20 of about 3,218 (198)
Hamilton–Jacobi equations for finite-rank matrix inference [PDF]
The Annals of Applied Probability, 2020 We compute the large-scale limit of the free energy associated with the problem of inference of a finite-rank matrix. The method follows the principle put forward in arXiv:1811.01432 which consists in identifying a suitable Hamilton-Jacobi equation satisfied by the limit free energy.
openaire +6 more sources
Bisymmetric non-negative Jacobi matrix realizations
Linear and Multilinear Algebra, 2023 Peer ...
Encinas Bachiller, Andrés Marcos +4 more
openaire +3 more sources
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2017 The paper concerns the non-linear algorithms for image reconstruction in electrical capacitance tomography for which Jacobi matrix computation time is very long. The paper presents the idea of an iterative linearization in nonlinear problems, which leads
Waldemar Smolik, Jacek Kryszyn
doaj +1 more source
Microclimate drives demographic compensation in a narrow endemic tropical species. [PDF]
New PhytolSummary Demographic compensation occurs when reductions in some vital rates are offset by increases in others, allowing populations to maintain similar performance across varying environments. This mechanism may help explain species' ecological distributions and range limits, yet its role at microenvironmental scales remains poorly understood.
Zupo T +10 more
europepmc +2 more sources
On a Discrete Inverse Problem for Two Spectra
Discrete Dynamics in Nature and Society, 2012 A version of the inverse spectral problem for two spectra of finite-order real Jacobi matrices (tridiagonal symmetric matrices) is investigated. The problem is to reconstruct the matrix using two sets of eigenvalues: one for the original Jacobi matrix ...
Gusein Sh. Guseinov
doaj +1 more source
On bounded complex Jacobi matrices and related moment problems in the complex plane [PDF]
Surveys in Mathematics and its Applications, 2023 In this paper we consider the following moment problem: find a positive Borel measure μ on ℂ subject to conditions ∫ zn dμ = sn, n∈ℤ+, where sn are prescribed complex numbers (moments).
Sergey M. Zagorodnyuk
doaj
On one condition of absolutely continuous spectrum for self-adjoint operators and its applications [PDF]
Opuscula Mathematica, 2018 In this work the method of analyzing of the absolutely continuous spectrum for self-adjoint operators is considered. For the analysis it is used an approximation of a self-adjoint operator \(A\) by a sequence of operators \(A_n\) with absolutely ...
Eduard Ianovich
doaj +1 more source
Hamilton–Jacobi equations for nonsymmetric matrix inference
The Annals of Applied Probability, 2022 We study the high-dimensional limit of the free energy associated with the inference problem of a rank-one nonsymmetric matrix. The matrix is expressed as the outer product of two vectors, not necessarily independent. The distributions of the two vectors are only assumed to have scaled bounded supports.
openaire +3 more sources
Jacobi--Davidson Method on Low-Rank Matrix Manifolds [PDF]
SIAM Journal on Scientific Computing, 2018 In this work we generalize the Jacobi-Davidson method to the case when eigenvector can be reshaped into a low-rank matrix. In this setting the proposed method inherits advantages of the original Jacobi-Davidson method, has lower complexity and requires less storage.
Rakhuba, M. V., Oseledets, I. V.
openaire +2 more sources
Физика волновых процессов и радиотехнические системы, 2019 This article discusses the application of the theory of bifurcation to pulsed voltage up-stabilizers, studied its behavior, and analyzed the stability conditions for varying various parameters of the system.
A.A. Voronoi, R.M. Zakirov, D.V. Mishin
doaj +1 more source