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On a class of infinite-dimensional Hamiltonian systems with asymptotically periodic nonlinearities

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Abstract

The authors study the existence of homoclinic type solutions for the following system of diffusion equations on ℝ × ℝN

$$ \left\{ \begin{gathered} \partial _t u - \Delta _x u + b \cdot \Delta _x u + au + V(t,x)v = H_v (t,x,u,v), \hfill \\ - \partial _t v - \Delta _x v - b \cdot \Delta _x v + av + V(t,x)u = H_u (t,x,u,v), \hfill \\ \end{gathered} \right. $$

where z = (u, v): ℝ × ℝN → ℝm × ℝm, a > 0, b = (b 1, …, b N ) is a constant vector and V ε C(ℝ × ℝN, ℝ), H ε C 1 (ℝ × ℝN × ℝ2m, ℝ). Under suitable conditions on V(t,x) and the nonlinearity for H(t, x, z), at least one non-stationary homoclinic solution with least energy is obtained.

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Correspondence to Minbo Yang.

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Project supported by the National Natural Science Foundation of China (No. 10971194), the Zhejiang Provincial Natural Science Foundation of China (Nos. Y7080008, R6090109) and the Zhejiang Innovation Project (No. T200905).

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Yang, M., Shen, Z. & Ding, Y. On a class of infinite-dimensional Hamiltonian systems with asymptotically periodic nonlinearities. Chin. Ann. Math. Ser. B 32, 45–58 (2011). https://doi.org/10.1007/s11401-010-0625-0

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  • DOI: https://doi.org/10.1007/s11401-010-0625-0

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