Convergence Analysis on SS-HOPM for BEC-Like Nonlinear Eigenvalue Problems

Convergence Analysis on SS-HOPM for BEC-Like Nonlinear Eigenvalue Problems

Year:    2021

Author:    Yaozong Tang, Qingzhi Yang, Gang Luo

Journal of Computational Mathematics, Vol. 39 (2021), Iss. 4 : pp. 621–632

Abstract

Shifted symmetric higher-order power method (SS-HOPM) has been proved effective in solving the nonlinear eigenvalue problem oriented from the Bose-Einstein Condensation (BEC-like NEP for short) both theoretically and numerically. However, the convergence of the sequence generated by SS-HOPM is based on the assumption that the real eigenpairs of BEC-like NEP are finite. In this paper, we will establish the point-wise convergence via Lojasiewicz inequality by introducing a new related sequence.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jcm.2005-m2019-0298

Journal of Computational Mathematics, Vol. 39 (2021), Iss. 4 : pp. 621–632

Published online:    2021-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    12

Keywords:    nonlinear eigenvalues Bose-Einstein Condensation SS-HOPM point-wise convergence Lojasiewicz inequality.

Author Details

Yaozong Tang

Qingzhi Yang

Gang Luo