The number of positive solutions to the Brezis-Nirenberg problem
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- by Daomin Cao, Peng Luo and Shuangjie Peng PDF
- Trans. Amer. Math. Soc. 374 (2021), 1947-1985 Request permission
Abstract:
In this paper we are concerned with the well-known Brezis-Nirenberg problem \begin{equation*} \begin {cases} -\Delta u= u^{\frac {N+2}{N-2}}+\varepsilon u, &{\text {in}~\Omega },\\ u>0, &{\text {in}~\Omega },\\ u=0, &{\text {on}~\partial \Omega }. \end{cases} \end{equation*} The existence of multi-peak solutions to the above problem for small $\varepsilon >0$ was obtained (see Monica Musso and Angela Pistoia [Indiana Univ. Math. J. 51 (2002), pp. 541–579]). However, the uniqueness or the exact number of positive solutions to the above problem is still unknown. Here we focus on the local uniqueness of multi-peak solutions and the exact number of positive solutions to the above problem for small $\varepsilon >0$.
By using various local Pohozaev identities and blow-up analysis, we first detect the relationship between the profile of the blow-up solutions and Green’s function of the domain $\Omega$ and then obtain a type of local uniqueness results of blow-up solutions. Lastly we give a description of the number of positive solutions for small positive $\varepsilon$, which depends also on Green’s function.
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Additional Information
- Daomin Cao
- Affiliation: Institute of Applied Mathematics, AMSS, The Chinese Academy of Sciences, Beijing 100190, People’s Republic of China; and University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- MR Author ID: 261647
- Email: dmcao@amt.ac.cn
- Peng Luo
- Affiliation: School of Mathematics and Statistics and Hubei Key Laboratory of Mathematical Sciences, Central China Normal University, Wuhan 430079, People’s Republic of China
- Email: pluo@mail.ccnu.edu.cn
- Shuangjie Peng
- Affiliation: School of Mathematics and Statistics and Hubei Key Laboratory of Mathematical Sciences, Central China Normal University, Wuhan 430079, People’s Republic of China
- MR Author ID: 635770
- Email: sjpeng@mail.ccnu.edu.cn
- Received by editor(s): December 17, 2019
- Received by editor(s) in revised form: July 15, 2020
- Published electronically: January 12, 2021
- Additional Notes: Peng Luo is the corresponding author
The authors were supported by the Key Project of NSFC (No. 11831009).
The first author was partially supported by NSFC grants (No. 11771469).
The second author was partially supported by NSFC grants (No. 11701204) and the China Scholarship Council. - © Copyright 2021 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 374 (2021), 1947-1985
- MSC (2020): Primary 35A02, 35B09, 35J05, 35J08, 35J60
- DOI: https://doi.org/10.1090/tran/8287
- MathSciNet review: 4216729