A125705 Genera g such that every orientation-preserving periodic automorphism of the closed orientable surface of genus g has an invariant circle.

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

Offset: 1

Author

Alex Fink, Jan 31 2007

Keywords

• nonn
• nice
• more

Comments

There are no other g with g<=10000.

Links

• H. Geiges & D. Rattaggi, Periodic Automorphisms of Surfaces: Invariant Circles and Maximal Orders, Experimental Mathematics, vol. 9 (2000).