Periodic Points and Topological Restriction Homology

Cary Malkiewich, Kate Ponto

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We answer in the affirmative two conjectures made by Klein and Williams. First, in a range of dimensions, the equivariant Reidemeister trace defines a complete obstruction to removing n-periodic points from a self-map f. Second, this obstruction defines a class in topological restriction homology. We prove these results using duality and trace for bicategories. This allows for immediate generalizations, including a corresponding theorem for the fiberwise Reidemeister trace.

Original languageEnglish
Pages (from-to)2401-2459
Number of pages59
JournalInternational Mathematics Research Notices
Issue number4
StatePublished - Feb 1 2022

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ASJC Scopus subject areas

  • General Mathematics


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