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无穷格子系统的新型周期行波解

New type periodic travelling wave solutions of the infinite lattice systems
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摘要 研究了无穷格子系统.q.(n)+f'(q(n))=V'(q(n+1)-q(n))-V'(q(n)-q(n-1)),n∈Z周期行波解的存在性.其中:q(n)=q(n,t)是第n个质点在t时刻的坐标;f表示质点的位势函数;V表示相邻2个质点间的相互作用函数.应用山路定理和环绕定理,获得了该系统新型周期行波解的存在性定理. It was focused on the infinite lattice systemsq(n)+f'(g(n))=V^t(g(n+1)-g(n))-V^t(g(n)-g(n-1)),n∈Z where q ( n) = q ( n, t ) denoted the coordinate of n-th particle at time t, f a potential function and V the potential of interaction between n-th and (n- 1)-th particles. The existence of new type periodic travelling wave solutions was established by mountain pass theorem and link theorem.
作者 花杰 沈自飞
出处 《浙江师范大学学报(自然科学版)》 CAS 2012年第3期246-251,共6页 Journal of Zhejiang Normal University:Natural Sciences
基金 国家自然科学基金资助项目(10971194)
关键词 无穷维哈密顿系统 行波 周期运动 山路定理 环绕定理 infinite dimensional Hamihonian systems travelling waves periodic motion mountain pass theorem link theorem
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参考文献9

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