Abstract
In this paper, we study the existence of nontrivial solution to a quasi-linear problem
where \( (-\Delta )_{p}^{s} u(x)=2\lim \nolimits _{\epsilon \rightarrow 0}\int _{\mathbb {R}^N \backslash B_{\varepsilon }(X)} \frac{|u(x)-u(y)|^{p-2} (u(x)-u(y))}{| x-y | ^{N+sp}}dy, \) \( x\in \mathbb {R}^N\) is a nonlocal and nonlinear operator and \( p\in (1,\infty )\), \( s \in (0,1) \), \( \lambda \in \mathbb {R} \), \( \Omega \subset \mathbb {R}^N (N\ge 2)\) is a bounded domain which smooth boundary \(\partial \Omega \). Using the variational methods based on the critical points theory, together with truncation and comparison techniques, we show that there exists a critical value \(\lambda _{*}>0\) of the parameter, such that if \(\lambda >\lambda _{*}\), the problem \((P)_{\lambda }\) has at least two positive solutions, if \(\lambda =\lambda _{*}\), the problem \((P)_{\lambda }\) has at least one positive solution and it has no positive solution if \(\lambda \in (0,\lambda _{*})\). Finally, we show that for all \(\lambda \ge \lambda _{*}\), the problem \((P)_{\lambda }\) has a smallest positive solution.
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Supported by the National Natural Science Foundation of China (Nos. 11201095, 11201098), the Youth Scholar Backbone Supporting Plan Project of Harbin Engineering University, the Fundamental Research Funds for the Central Universities, Postdoctoral research startup foundation of Heilongjiang (No. LBH-Q14044) and the Science Research Funds for Overseas Returned Chinese Scholars of Heilongjiang Province (No. LC201502).
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Ge, B., Cui, YX., Sun, LL. et al. The positive solutions to a quasi-linear problem of fractional p-Laplacian type without the Ambrosetti–Rabinowitz condition. Positivity 22, 873–895 (2018). https://doi.org/10.1007/s11117-018-0551-z
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DOI: https://doi.org/10.1007/s11117-018-0551-z