二阶奇异动力系统的非平凡周期解
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国家自然科学基金(11171090)


Nontrivial periodic solutions for second order singular dynamical systems
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    摘要:

    应用Leray-Schauder非线性二择一原理研究二阶动力系统x+k2x=f(t,x)+e(t)非平凡周期解的存在性,其中0<k<π/T,fC((R/TZRN\{0},RN)在原点具有排斥的奇性.不需要任何的强制性条件,既可以处理强奇性,也可以处理弱奇性.

    Abstract:

    In this paper,we study the existence of nontrivial periodic solutions for second order dynamical systems x+k2x=f(t,x)+e(t), here 0<k<π/T and fC((R/TZRN\{0},RN) has a repulsive singularity at the origin.We do not need any coercivity conditions,therefore we can deal with the case of a strong singularity as well as the case of a weak singularity.The proof is based on a nonlinear alternative principle of Leray-Schauder.

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廖芳芳,许晓婕.二阶奇异动力系统的非平凡周期解[J].南京信息工程大学学报(自然科学版),2013,5(1):81-85
LIAO Fangfang, XU Xiaojie. Nontrivial periodic solutions for second order singular dynamical systems[J]. Journal of Nanjing University of Information Science & Technology, 2013,5(1):81-85

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  • 收稿日期:2012-04-16

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