Rotation numbers for S2 diffeomorphisms

John M Franks*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter


In these notes we describe the properties of, and generalize, the function R which assigns a number to a 4-tuple of distinct fixed points of an orientation preserving homeomorphism or diffeomorphism of S2.

Original languageEnglish (US)
Title of host publicationContemporary Mathematics
PublisherAmerican Mathematical Society
Number of pages10
StatePublished - Jan 1 2017

ASJC Scopus subject areas

  • Mathematics(all)

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