相对论简并量子等离子体中完全非线性重离子声波行波解的动力学研究

数学物理学报 ›› 2021, Vol. 41 ›› Issue (2): 496-506.

相对论简并量子等离子体中完全非线性重离子声波行波解的动力学研究

DestaLeta Temesgen^1,²,刘文军^1,*(),丁建¹

¹ 南京信息工程大学数学与统计学院南京 210044
² Department of Mathematics, Dilla University, P O Box 419, Dilla, Ethiopia

收稿日期:2019-08-02 出版日期:2021-04-26 发布日期:2021-04-29
通讯作者: 刘文军 E-mail:wjliu@nuist.edu.cn
基金资助:
中国科学技术部国际杰青计划(Ethiopia-18-010);国家自然科学基金(11950410502);国家自然科学基金(11771216);江苏省六大人才高峰计划(2015-XCL-020)

Dynamics of Traveling Wave Solutions to Fully Nonlinear Heavy Ion-Acoustic Degenerate Relativistic Quantum Plasmas

Leta Temesgen Desta^1,²,Wenjun Liu^1,*(),Jian Ding¹

¹ School of Mathematics and Statistics, Nanjing University of Information Science and Technology, Nanjing 210044
² Department of Mathematics, Dilla University, P O Box 419, Dilla, Ethiopia

Received:2019-08-02 Online:2021-04-26 Published:2021-04-29
Contact: Wenjun Liu E-mail:wjliu@nuist.edu.cn
Supported by:
the Talented Young Scientist Program of Ministry of Science and Technology of China(Ethiopia-18-010);the NSFC(11950410502);the NSFC(11771216);the Six Talent Peaks Project in Jiangsu Province(2015-XCL-020)

摘要/Abstract

摘要：

基于离子声波模型的最新进展，研究了天体物理相对论简并量子等离子体（ADRQP）中完全非线性重离子声波（HIAWs）模型的动力学行为，以确定所有精确的显式行波解.为了保证上述解的存在性，确定了所有参数条件.研究过程表明模型具有有界解（包括扭结和反扭结波解、周期峰解、伪峰解和紧解），这些结果改进了对该模型行波解的研究.

关键词: 孤波解, 周期峰, 紧性解, 扭波和反扭波, 伪峰, 分岔, 奇异行波系统

Abstract:

Based on recent advancements on ion-acoustic wave models, a fully nonlinear heavy ion-acoustic waves (HIAWs), in astrophysical degenerate relativistic quantum plasmas (ADRQP), which is studied by Sultana and Schlickeiser, is investigated. We study the dynamical behavior of the model to determine all exact explicit traveling wave solutions. To guarantee the existence of the aforementioned solutions, all parameter conditions are determined. Our procedure shows that the model has bounded solutions (including kink and anti-kink wave solutions, periodic peakon, pseudo-peakon wave solutions, and compact solutions). These results completely improve the study of traveling wave solutions for the mentioned model.

Key words: Solitary wave solution, Periodic peakon, Compacton, Kink and anti-kink wave, Pseudo-peakon, Bifurcation, Singular traveling wave system

中图分类号:

O175.2

DestaLeta Temesgen,刘文军,丁建. 相对论简并量子等离子体中完全非线性重离子声波行波解的动力学研究[J]. 数学物理学报, 2021, 41(2): 496-506.

Leta Temesgen Desta,Wenjun Liu,Jian Ding. Dynamics of Traveling Wave Solutions to Fully Nonlinear Heavy Ion-Acoustic Degenerate Relativistic Quantum Plasmas[J]. Acta mathematica scientia,Series A, 2021, 41(2): 496-506.

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