 Virtual element method for semilinear sine–Gordon equation over polygonal mesh using product approximation techniqueD. Adak and S. Natarajan Mathematics and Computers in Simulation (MATCOM), 2020, vol. 172, issue C, 224-243 Abstract: In this paper, we employ the linear virtual element spaces to discretize the semilinear sine–Gordon equation in two dimensions. The salient features of the virtual element method (VEM) are: (a) it does not require explicit form of the shape functions to construct the nonlinear and the bilinear terms, and (b) relaxes the constraint on the mesh topology by allowing the domain to be discretized with general polygons consisting of both convex and concave elements, and (c) easy mesh refinements (hanging nodes and interfaces are allowed). The nonlinear source term is discretized by employing the product approximation technique and for temporal discretization, the Crank–Nicolson scheme is used. The resulting nonlinear equations are solved using the Newton’s method. We derive a priori error estimations in L2 and H1 norms. The convergence properties and the accuracy of the virtual element method for the solution of the sine–Gordon equation are demonstrated with academic numerical experiments. Keywords: Virtual element method; Product approximation technique; sine–Gordon equation (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:172:y:2020:i:c:p:224-243 DOI: 10.1016/j.matcom.2019.12.007 Access Statistics for this article Mathematics and Computers in Simulation (MATCOM) is currently edited by Robert Beauwens More articles in Mathematics and Computers in Simulation (MATCOM) from Elsevier |
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