Ground state solutions to generalized nonlinear wave equations with infinite-dimensional kernel
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866912851001606144 |
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| author | Mandel, Rainer Weth, Tobias |
| author_facet | Mandel, Rainer Weth, Tobias |
| contents | The present paper is devoted to existence results for time-periodic solutions of generalized nonlinear wave equations in a closed Riemannian manifold M. Our main focus lies on the doubly degenerate setting where the associated generalized wave operator has an infinite dimensional kernel and the nonlinearity may vanish on open subsets of M. To deal with this setting, we apply a direct variational approach based on a new variant of the nonlinear saddle point reduction to the associated Nehari-Pankov set. This allows us to find ground state solutions and to characterize the associated ground state energy by a fairly simple minimax principle. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_22544 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Ground state solutions to generalized nonlinear wave equations with infinite-dimensional kernel Mandel, Rainer Weth, Tobias Analysis of PDEs The present paper is devoted to existence results for time-periodic solutions of generalized nonlinear wave equations in a closed Riemannian manifold M. Our main focus lies on the doubly degenerate setting where the associated generalized wave operator has an infinite dimensional kernel and the nonlinearity may vanish on open subsets of M. To deal with this setting, we apply a direct variational approach based on a new variant of the nonlinear saddle point reduction to the associated Nehari-Pankov set. This allows us to find ground state solutions and to characterize the associated ground state energy by a fairly simple minimax principle. |
| title | Ground state solutions to generalized nonlinear wave equations with infinite-dimensional kernel |
| topic | Analysis of PDEs |
| url | https://arxiv.org/abs/2510.22544 |