Results 81 to 90 of about 4,651 (187)
Superconvergence Analysis of Finite Element Method for a Second-Type Variational Inequality
Journal of Applied Mathematics, 2012 This paper studies the finite element (FE) approximation to a second-type variational inequality. The supe rclose and superconvergence results are obtained for conforming bilinear FE and nonconforming EQrot FE schemes under a reasonable regularity of the
Dongyang Shi, Hongbo Guan, Xiaofei Guan
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International Journal for Numerical Methods in Engineering, Volume 125, Issue 7, 15 April 2024.Abstract To compute the effective properties of random heterogeneous materials, a number of different boundary conditions are used to define the apparent properties on cells of finite size. Typically, depending on the specific boundary condition, different numerical methods are used.
Lennart Risthaus, Matti Schneider
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Advances in Difference Equations, 2019 Based on the weighted and shifted Grünwald formula, a fully discrete finite element scheme is derived for the variable coefficient time-fractional subdiffusion equation.
Lin He, Juncheng Lv
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International Journal of Antennas and Propagation, 2016 Two curved targets are used to explore far-field superconvergence effects arising in numerical solutions of the electric-field and magnetic-field integral equations.
Andrew F. Peterson
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, 2001 For a limited number of matter fields, the discontinuity of the transverse gauge field propagator can satisfy an exact sum rule. With controlled and limited gauge dependence, this supercconvergence relation is of physical interest.
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Journal of Inequalities and Applications, 2019 In this paper, we investigate a variational discretization approximation of parabolic bilinear optimal control problems with control constraints. For the state and co-state variables, triangular linear finite element and difference methods are used for ...
Yuelong Tang, Yuchun Hua
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Journal of Applied Mathematics, 2013 A new multiscale finite element method is presented for solving the elliptic equations with rapidly oscillating coefficients. The proposed method is based on asymptotic analysis and careful numerical treatments for the boundary corrector terms by virtue
Xiaofei Guan +3 more
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The coupled method for singularly perturbed Volterra integro-differential equations
Advances in Difference Equations, 2019 In this work a coupled (LDG-CFEM) method for singularly perturbed Volterra integro-differential equations with a smooth kernel is implemented. The existence and uniqueness of the coupled solution is given, provided that the source function and the kernel
Xia Tao, Yinghui Zhang
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Mathematical and Computational Applications, 2018 In this work we obtain approximate solutions for Fredholm integral equations of the second kind by means of Petrov–Galerkin method, choosing “regular pairs” of subspaces, Xn,Yn, which are simply characterized by the positive definitiveness of a ...
Silvia Alejandra Seminara +1 more
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