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A125705
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Genera g such that every orientation-preserving periodic automorphism of the closed orientable surface of genus g has an invariant circle.
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0
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 27, 28, 30, 32, 35, 39, 42, 43, 44, 45, 48, 49, 50, 51, 60, 65, 66, 72, 73, 87, 90, 105
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| There are no other g with g<=10000.
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REFERENCES
| H. Geiges & D. Rattaggi, Periodic Automorphisms of Surfaces: Invariant Circles and Maximal Orders, Experimental Mathematics, vol. 9 (2000).
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CROSSREFS
| Sequence in context: A074402 A198343 A094270 * A154314 A191881 A005524
Adjacent sequences: A125702 A125703 A125704 * A125706 A125707 A125708
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KEYWORD
| nonn,nice
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AUTHOR
| Alex Fink (000024(AT)gmail.com), Jan 31 2007
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