Results 11 to 20 of about 671,343 (306)
Non-classical periodic boundary value problems with impulsive conditions
Journal of New Results in Science, 2023 This study investigates some spectral properties of a new type of periodic Sturm-Liouville problem. The problem under consideration differs from the classical ones in that the differential equation is given on two disjoint segments that have a common end,
Sevda Nur Öztürk +2 more
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An efficient density matrix renormalization group algorithm for chains with periodic boundary condition [PDF]
Papers in Physics, 2016 The Density Matrix Renormalization Group (DMRG) is a state-of-the-art numerical technique for a one dimensional quantum many-body system; but calculating accurate results for a system with Periodic Boundary Condition (PBC) from the conventional DMRG ...
Dayasindhu Dey +2 more
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Communications in Advanced Mathematical Sciences, 2021 We present existence and uniqueness results for a class of higher order anti-periodic fractional boundary value problems with Riesz space derivative which is two-sided fractional operator.
Şuayip Toprakseven
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Constant-Sign Green’s Function of a Second-Order Perturbed Periodic Problem
Axioms, 2022 In this paper, we were interested in obtaining the exact expression and studying the regions of constant sign of Green’s function related to a second-order perturbed periodic problem coupled with integral boundary conditions at the extremes of the ...
Alberto Cabada +2 more
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Periodic boundary conditions and G 2 cosmology
Classical and Quantum Gravity, 2023 Abstract In the standard concordance cosmology the spatial curvature is assumed to be constant and zero (or at least very small). In particular, in numerical computations of the structure of the Universe using N-body simulations, exact periodic boundary conditions are assumed which constrains the spatial curvature.
A A Coley, W C Lim
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Monotone iterative technique for fractional differential equations with periodic boundary conditions [PDF]
Opuscula Mathematica, 2009 In this paper we develop Monotone Method using upper and lower solutions for fractional differential equations with periodic boundary conditions. Initially we develop a comparison result and prove that the solution of the linear fractional differential ...
J. D. Ramírez, A. S. Vatsala
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Mathematics, 2023 The modal and vibration-noise response characteristics of plate structures are closely related to their boundary effects, and the analytical modeling and solution of the dynamics of plate structures with complex boundary conditions can reveal mechanisms ...
Yuanyuan Shi +2 more
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Rotational Bloch Boundary Conditions and the Finite-Element Implementation in Photonic Devices
Photonics, 2023 This article described the implementation of rotational Bloch boundary conditions in photonic devices using the finite element method (FEM). For the electromagnetic analysis of periodic structures, FEM and Bloch boundary conditions are now widely used ...
Zhanwen Wang +3 more
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Application of periodic boundaries in freight train aerodynamic performance simulations
Alexandria Engineering Journal, 2023 The length of long marshalling freight train and the non-streamline shape of wagon lead to more difficulties in simulating the aerodynamic performances.
Gaopeng Liang +5 more
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Applied Mathematics Letters, 2020 This paper aims to present a new second-order maximum-principle preserving finite difference scheme for Allen–Cahn equations with periodic boundary conditions.
T. Hou, Defeng Xiu, Wenzhu Jiang
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