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Joint Mathematical seminar of Saint Petersburg State University and Peking University
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Extending periodic maps on surfaces over the 4-sphere Sh. Wang Peking University, Beijing |
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Abstract: The topic indicated by the title has been addressed by Montesinos (1982) and Hirose (2002) using Rohlin intersection form, and by Ding-Liu-Wang-Yao (2012) using spin structures. Based on the work above, we deduce a more computable criterion for extending periodic maps on surfaces over the 4-sphere. Some applications are given. Results including: (1) Let Then (2) For infinitely many primes, each periodic map of order This is joint work with Zhongzi Wang. Language: English |