Results 81 to 90 of about 558,964 (194)
Pseudoergodic operators and periodic boundary conditions
Mathematics of Computation, 2019 There is an increasing literature on random non self-adjoint infinite matrices with motivations ranging from condensed matter physics to neural networks. Many of these operators fall into the class of ``pseudoergodic'' operators, which allows the elimination of probabilistic arguments when studying spectral properties. Parallel to this is the increased
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Periodic Boundary Conditions for Periodic Jacobi Matrices on Trees
, 2020 We consider matrices on infinite trees which are universal covers of Jacobi matrices on finite graphs. We are interested in the question of the existence of sequences of finite covers whose normalized eigenvalue counting measures converge to the density of states of the operator on the infinite tree.
Avni, Nir +3 more
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Complexity, 2017 A stochastic prey-predator system in a polluted environment with Beddington-DeAngelis functional response is proposed and analyzed. Firstly, for the system with white noise perturbation, by analyzing the limit system, the existence of boundary periodic ...
Feifei Bian +3 more
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p-Cyclic SOR for BVPs with periodic boundary conditions
Applied Numerical Mathematics, 2010 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Σαριδακης Ιωαννης(http://users.isc.tuc.gr/~gsaridakis) +4 more
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Inequalities among eigenvalues of Sturm–Liouville problems
Journal of Inequalities and Applications, 1999 There are well-known inequalities among the eigenvalues of Sturm–Liouville problems with periodic, semi-periodic, Dirichlet and Neumann boundary conditions.
Kong Q, Wu H, Zettl A, Eastham MSP
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Ambarzumyan’s theorem for the quasi-periodic boundary conditions
Analysis and Mathematical Physics, 2015 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Reduction of XXZ Model with Generalized Periodic Boundary Conditions
Theoretical and Mathematical Physics, 2001 We examine the XXZ model with generalized periodic boundary conditions and identify conditions for the truncation of the functional fusion relations of the transfer matrix fusion. After the truncation, the fusion relations become a closed system of functional equations. The energy spectrum can be obtained by solving these equations.
Belavin, A. A., Gubanov, S. Yu.
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DLPNO-MP2 with Periodic Boundary Conditions
We present domain-based local pair natural orbital Møller--Plesset second order perturbation theory (DLPNO-MP2) with Born--von K{á}rm{á}n boundary (BvK) conditions. The approach is based on well-localised Wannier functions in a LCAO formalism and extends the molecular DLPNO-MP2 implementation Tubromole program package to periodic systems.
Nejad, Arman +3 more
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On the Time Periodic Free Boundary Associated to Some Nonlinear Parabolic Equations
Boundary Value Problems, 2010 We give sufficient conditions, being also necessary in many cases, for the existence of a periodic free boundary generated as the boundary of the support of the periodic solution of a general class of nonlinear parabolic equations.
Díaz JI, Badii M
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Electronic Journal of Differential Equations, 2007 In this work we present some new results concerning the existence and uniqueness of solutions to an impulsive first-order, nonlinear ordinary differential equation with "non-periodic" boundary conditions.
Christopher C. Tisdell, Juan J. Nieto
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