Results 41 to 50 of about 871,744 (361)
Моделирование и анализ информационных систем, 2016 For a second order equation with a small factor at the highest derivative the asymptotic behavior of all eigenvalues of periodic and antiperiodic problems is studied. The main assumption is that the coefficient at the first derivative in the equation is the
S. A. Kashchenko
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Mathematics, 2022 In this paper, we first derive a family of iterative schemes with fourth order. A weight function is used to maintain its optimality. Then, we transform it into methods with several self-accelerating parameters to reach the highest possible convergence ...
Malik Zaka Ullah +3 more
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Stability of variational eigenvalues for the fractional p−Laplacian [PDF]
, 2015 By virtue of $\Gamma-$convergence arguments, we investigate the stability of variational eigenvalues associated with a given topological index for the fractional $p-$Laplacian operator, in the singular limit as the nonlocal operator converges to the $p-
L. Brasco, E. Parini, M. Squassina
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Singlet states and the estimation of eigenstates and eigenvalues of an unknown Controlled-U gate [PDF]
, 2001 We consider several problems that involve finding the eigenvalues and generating the eigenstates of unknown unitary gates. We first examine Controlled-U gates that act on qubits, and assume that we know the eigenvalues.
A. Peres +6 more
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A fully parallel method for tridiagonal eigenvalue problem
International Journal of Mathematics and Mathematical Sciences, 1994 In this paper, a fully parallel method for finding all eigenvalues of a real matrix pencil (A,B) is given, where A and B are real symmetric tridiagonal and B is positive definite. The method is based on the homotopy continuation coupled with the strategy
Kuiyuan Li
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Моделирование и анализ информационных систем, 2017 The article considers asymptotic distribution of characteristic constants in periodic and antiperiodic boundary-value problems for the second-order linear equation with periodic coefficients.
Sergey A. Kashchenko
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Linear Algebra and its Applications, 1982 AbstractWe study the dependence of the eigenvalues of a tridiagonal matrix upon off-diagonal entries. The change in the eigenvalues when a cross-diagonal product approaches zero or infinity is estimated.
William W. Hager, Roger N. Pederson
openaire +3 more sources
Eigenvalues of the negative Laplacian for arbitrary multiply connected domains
International Journal of Mathematics and Mathematical Sciences, 1996 The purpose of this paper is to derive some interesting asymptotic formulae for spectra of arbitrary multiply connected bounded domains in two or three dimensions, linked with variation of positive distinct functions entering the boundary conditions ...
E. M. E. Zayed
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All Real Eigenvalues of Symmetric Tensors [PDF]
SIAM Journal on Matrix Analysis and Applications, 2014 This paper studies how to compute all real eigenvalues, associated to real eigenvectors, of a symmetric tensor. As is well known, the largest or smallest eigenvalue can be found by solving a polynomial optimization problem, while the other middle ones ...
Chunfeng Cui, Yuhong Dai, Jiawang Nie
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The zeros of az2J″ν(z)+bzJ′ν(z)+cJν(z) as functions of order
International Journal of Mathematics and Mathematical Sciences, 1992 If j″νk denotes the kth positive zero of the Bessel function J″ν(x), it has been shown recently by Lorch and Szego [2] that j″ν1 increases with ν in ν>0 and that (with k fixed in 2,3,…) j″νk increases in 00.
A. McD. Mercer
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