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arXiv 2604.03751math.NAcs.NA
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虚元法求解本征值问题:右端项的稳定化是否必要?

Virtual element approximation of eigenvalue problems: is the stabilization of the right hand side necessary?

King Abdullah University of Science and Technology (KAUST)(阿卜杜拉国王科技大学);Dipartimento di Matematica “F. Casorati”, Università di Pavia(帕维亚大学数学系);IMATI-CNR “Enrico Magenes”, Pavia(帕维亚 IMATI-CNR 恩里科·马格内斯研究所);Università di Brescia(布雷西亚大学);DICATAM, Università di Brescia(布雷西亚大学 DICATAM)

Daniele Boffi, Francesca Gardini, Lucia Gastaldi

AI总结:

本文证明在椭圆自共轭本征值问题中,采用低阶标准虚元空间时,质量矩阵的稳定化并非必要,数值结果表明更高阶方案在不同网格序列上也成立。

摘要:

虚元法求解本征值问题通常需要适当调整稳定化参数,除非使用自稳定化或无稳定化虚元法。本文证明在椭圆自共轭本征值问题中,采用低阶标准虚元空间时,质量矩阵的稳定化是不必要的。数值证据显示,对于更高阶方案,在各种网格序列上同样成立。

英文摘要:

The VEM approximation of eigenvalue problems usually involves the appropriate tuning of stabilization parameters, unless self-stabilizing or stabilization-free VEM are used. In this paper we prove that for elliptic self-adjoint eigenvalue problems the stabilization of the mass matrix is not necessary when lower order standard VEM spaces are adopted. Numerical evidence shows that also for higher order schemes the same result is true on various mesh sequences.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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