Abstract
In this paper, we consider the multiplicity and concentration phenomenon of positive solutions to the following Choquard equation
where \(N\ge 3\), \((N-4)_+<\alpha < N\), \(I_\alpha \) is the Riesz potential, \(\varepsilon \) is a small parameter, \(V(x)\in C(\mathbb {R}^N)\cap L^\infty (\mathbb {R}^N)\) is a positive potential, \(f\in C^1(\mathbb {R}^+,\mathbb {R})\) is a subcritical nonlinear term and \( 2^{*}_{\alpha }=\frac{N+\alpha }{N-2}\) is the upper-critical exponent in the sense of Hardy–Littlewood–Sobolev inequality. By means of variational methods and delicate energy estimates, we establish the relationship between the number of solutions and the profiles of potentials V and Q, and the concentration behavior of positive solutions is also obtained for \(\varepsilon >0\) small.
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Acknowledgements
The authors are very grateful for the anonymous reviewers for their careful reading the manuscript and valuable comments. Y. Meng is supported by Beijing Natural Science Foundation (1222017) and National Natural Science Foundation of China (12271028) and X. He is supported by National Natural Science Foundation of China (12171497,11771468, 11971027).
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Meng, Y., He, X. Multiplicity of Concentrating Solutions for Choquard Equation with Critical Growth. J Geom Anal 33, 78 (2023). https://doi.org/10.1007/s12220-022-01129-1
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DOI: https://doi.org/10.1007/s12220-022-01129-1
Keywords
- Choquard equation
- Semiclassical states
- Hardy–Littlewood–Sobolev inequality
- Critical exponent
- Variational method