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Mathematics > Numerical Analysis

arXiv:2309.16084 (math)
[Submitted on 28 Sep 2023]

Title:A priori and a posteriori error analysis for a VEM discretization of the convection-diffusion eigenvalue problem

Authors:Danilo Amigo, Felipe Lepe, Gonzalo Rivera
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Abstract:In this paper we propose and analyze a virtual element method for the two dimensional non-symmetric diffusion-convection eigenvalue problem in order to derive a priori and a posteriori error estimates. Under the classic assumptions of the meshes, and with the aid of the classic theory of compact operators, we prove error estimates for the eigenvalues and eigenfunctions. Also, we develop an a posteriori error estimator which, in one hand, results to be reliable and on the other, with standard bubble functions arguments, also results to be efficient. We test our method on domains where the complex eigenfunctions are not sufficiently regular, in order to assess the performance of the estimator that we compare with the uniform refinement given by the a priori analysis
Subjects: Numerical Analysis (math.NA)
Cite as: arXiv:2309.16084 [math.NA]
  (or arXiv:2309.16084v1 [math.NA] for this version)
  https://doi.org/10.48550/arXiv.2309.16084

Submission history

From: Felipe Lepe [view email]
[v1] Thu, 28 Sep 2023 00:45:49 UTC (6,717 KB)
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