Abstract
In this paper, let \(n\) be a positive integer and \(P=diag(-I_{n-\kappa },I_\kappa ,-I_{n-\kappa },I_\kappa )\) for some integer \(\kappa \in [0, n]\), we prove that for any compact convex hypersurface \(\Sigma \) in \(\mathbf{R}^{2n}\) with \(n\ge 2\) there exist at least two geometrically distinct P-invariant closed characteristics on \(\Sigma \), provided that \(\Sigma \) is P-symmetric, i.e., \(x\in \Sigma \) implies \(Px\in \Sigma \). This work is shown to extend and unify several earlier works on this subject.
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Acknowledgments
I would like to sincerely thank the anonymous referee for his/her careful reading of the manuscript and valuable comments. This paper contains a part of my Ph.D thesis. It is my pleasure to thank my thesis advisor, Professor Yiming Long, for his advices and helps on my study and on this paper.
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Communicated by P. Rabinowitz.
Partially supported by NNSF (No. 11131004), CUSF (No. WK0010000031).
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Liu, H. Multiple P-invariant closed characteristics on partially symmetric compact convex hypersurfaces in \({\varvec{R}}^{2n}\) . Calc. Var. 49, 1121–1147 (2014). https://doi.org/10.1007/s00526-013-0614-8
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DOI: https://doi.org/10.1007/s00526-013-0614-8