Results 31 to 40 of about 1,319 (203)
Alexandria Engineering Journal, 2021 This paper contributes to develop a highly accurate numerical method for solving two-dimensional mass transfer equations during convective air drying of apple slices.
Yin Yang +4 more
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Lieb–Thirring Inequalities for Jacobi Matrices
Journal of Approximation Theory, 2002 21 pages ...
Hundertmark, Dirk, Simon, Barry
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Continued fractions and periodic jacobi matrices
Linear Algebra and its Applications, 1992 The inverse eigenvalue problem for periodic Jacobi matrices is solved. Theoretical theorems on existence for different data are given and some algorithms (based on a continued fraction expansion) for solving this problem are described.
Andrea, Stephen A., Berry, T.G.
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Reconstructing Jacobi Matrices from Three Spectra [PDF]
, 2004 Cut a Jacobi matrix into two pieces by removing the n-th column and n-th row. We give neccessary and sufficient conditions for the spectra of the original matrix plus the spectra of the two submatrices to uniqely determine the original matrix. Our result contains Hostadt's original result as a special case.
Michor, Johanna, Teschl, Gerald
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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
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Darboux transformation of symmetric Jacobi matrices and Toda lattices
Frontiers in Applied Mathematics and StatisticsLet J be a symmetric Jacobi matrix associated with some Toda lattice. We find conditions for Jacobi matrix J to admit factorization J = LU (or J = 𝔘𝔏) with L (or 𝔏) and U (or 𝔘) being lower and upper triangular two-diagonal matrices, respectively.
Ivan Kovalyov, Oleksandra Levina
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Performance Comparison of GPU-Based Jacobi Solvers Using CUDA Provided Synchronization Methods
IEEE Access, 2020 In this manuscript, variants of Jacobi solver implementation on general purpose graphical processing units (GPGPU) have been purposed and compared. During this work, parallel implementation of finite element method (FEM) using Poisson's equation on ...
Maria Aslam +3 more
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On the Fourier expansions of Jacobi forms
International Journal of Mathematics and Mathematical Sciences, 2004 We use the relationship between Jacobi forms and vector-valued modular forms to study the Fourier expansions of Jacobi forms of indexes p, p2, and pq for distinct odd primes p, q.
Howard Skogman
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Jacobi matrices with lacunary spectrum [PDF]
Journal of Mathematical Analysis and Applications, 2021 We find asymptotics of entries of Jacobi matrices with lacunary spectral data under some additional growth conditions. We also prove the inverse results. In addition, we study connections between Jacobi matrices, canonical systems and de Branges spaces for lacunary spectral ...
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Four-body bound states in momentum space: the Yakubovsky approach without two-body t − matrices
Frontiers in Physics, 2023 This study presents a solution to the Yakubovsky equations for four-body bound states in momentum space, bypassing the common use of two-body t − matrices.
M. Mohammadzadeh +4 more
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