Adaptive Morley element algorithms for the biharmonic eigenvalue problem

Autor: Hao Li, Yidu Yang
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Journal of Inequalities and Applications, Vol 2018, Iss 1, Pp 1-21 (2018)
Druh dokumentu: article
ISSN: 1029-242X
DOI: 10.1186/s13660-018-1643-9
Popis: Abstract This paper is devoted to the adaptive Morley element algorithms for a biharmonic eigenvalue problem in Rn $\mathbb{R}^{n}$ ( n≥2 $n\geq2$). We combine the Morley element method with the shifted-inverse iteration including Rayleigh quotient iteration and the inverse iteration with fixed shift to propose multigrid discretization schemes in an adaptive fashion. We establish an inequality on Rayleigh quotient and use it to prove the efficiency of the adaptive algorithms. Numerical experiments show that these algorithms are efficient and can get the optimal convergence rate.
Databáze: Directory of Open Access Journals
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