Abstract
In this paper, we study the existence and multiplicity of homoclinic solutions for the following second-order p(t)-Laplacian–Hamiltonian systems
where \({t \in \mathbb{R}}\), \({u \in \mathbb{R}^n}\), \({p \in C(\mathbb{R},\mathbb{R})}\) with p(t) > 1, \({a \in C(\mathbb{R},\mathbb{R})}\), \({W\in C^1(\mathbb{R}\times\mathbb{R}^n,\mathbb{R})}\) and \({\nabla W(t,u)}\) is the gradient of W(t, u) in u. The point is that, assuming that a(t) is bounded in the sense that there are constants \({0<\tau_1<\tau_2<\infty}\) such that \({\tau_1\leq a(t)\leq \tau_2 }\) for all \({t \in \mathbb{R}}\) and W(t, u) is of super-p(t) growth or sub-p(t) growth as \({|u|\rightarrow \infty}\), we provide two new criteria to ensure the existence and multiplicity of homoclinic solutions, respectively. Recent results in the literature are extended and significantly improved.
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This work is supported by the National Natural Science Foundation of China (Grant Nos. 11101304, 11031002, 11371058), RFDP (Grant No. 20110003110004), and the Grant of Beijing Education Committee Key Project (Grant No. KZ20130028031).
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Zhang, Z., Xiang, T. & Yuan, R. Homoclinic Solutions for p(t)-Laplacian–Hamiltonian Systems Without Coercive Conditions. Mediterr. J. Math. 13, 1589–1611 (2016). https://doi.org/10.1007/s00009-015-0580-9
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DOI: https://doi.org/10.1007/s00009-015-0580-9