Discrete Schrödinger equations and systems with mixed and concave-convex nonlinearities
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- by Guanwei Chen and Shiwang Ma;
- Proc. Amer. Math. Soc. 152 (2024), 2621-2636
- DOI: https://doi.org/10.1090/proc/16834
- Published electronically: April 23, 2024
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Abstract:
In this paper, we obtain the existence of at least two standing waves (and homoclinic solutions) for a class of time-dependent (and time-independent) discrete nonlinear Schrödinger systems or equations. The novelties of the paper are as follows. (1) Our nonlinearities are composed of three mixed growth terms, i.e., the nonlinearities are composed of sub-linear, asymptotically-linear and super-linear terms. (2) Our nonlinearities may be sign-changing. (3) Our results can also be applied to the cases of concave-convex nonlinear terms. (4) Our results can be applied to a wide range of mathematical models.References
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Bibliographic Information
- Guanwei Chen
- Affiliation: School of Mathematical Sciences, University of Jinan, Jinan 250022, Shandong Province, People’s Republic of China
- Email: guanweic@163.com
- Shiwang Ma
- Affiliation: School of Mathematical Sciences, Nankai University, Tianjin 300071, People’s Republic of China
- Email: shiwangm@163.net
- Received by editor(s): October 24, 2023
- Received by editor(s) in revised form: January 29, 2024
- Published electronically: April 23, 2024
- Additional Notes: Research was supported by Taishan Scholar Foundation for Young Experts of Shandong Province (No. tsqn202306223).
The first author is the corresponding author - Communicated by: Wenxian Shen
- © Copyright 2024 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 152 (2024), 2621-2636
- MSC (2020): Primary 35Q51, 35Q55, 39A12, 39A70
- DOI: https://doi.org/10.1090/proc/16834