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  • 學位論文

非線性薛丁格方程之基態與束縛態

Ground and Bound States of Nonlinear Schrödinger Equation

指導教授 : 林太家

摘要


本文我們探討一個非線性薛丁格方程式。利用變分法上的技巧,我們分析能量泛函的幾何結構,找到了一個局部極小值以及一個鞍點。也因此我們證明了方程式存在兩個解,分別對應了基態以及束縛態。

並列摘要


In this paper we consider a nonlinear Schrödinger equation. By Nehari manifold approach, the geometry of energy functional admits a minimum and a saddle point. Hence we can find two solutions of the equation which correspond to a ground state and a bound state.

參考文獻


[1] M.K. Kwong, Uniqueness of positive solutions of Delta u-u+up = 0 in Rn, Arch. Rational Mech. Anal. 105 (1989) 243-266.
[2] T.-C. Lin and J. Wei, Spikes in two coupled nonlinear Schrödinger equations, Ann. I. H. Poincare Analyse. Non. 22, no.4 (2005) 403-439.
[3] D. Mozyrsky, I. Martin, E. Timmermans, Coherent macroscopic quantum tunneling in boson-fermion mixtures, arXiv:0704.0650v1.
[4] M. Willem, Minimax Theorems, PNLDE 24, Birkhauser, 1996.
References

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