Persistent homology for kernels, images, and cokernels

  • Authors:
  • David Cohen-Steiner;Herbert Edelsbrunner;John Harer;Dmitriy Morozov

  • Affiliations:
  • INRIA, Sophia-Antipolis, France;Duke University, Durham, Berlin Mathematical School, Berlin, Germany, and Geomagic, Research Triangle Park, North Carolina;Duke University, Durham, North Carolina;Duke University, Durham, North Carolina

  • Venue:
  • SODA '09 Proceedings of the twentieth Annual ACM-SIAM Symposium on Discrete Algorithms
  • Year:
  • 2009

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Abstract

Motivated by the measurement of local homology and of functions on noisy domains, we extend the notion of persistent homology to sequences of kernels, images, and cokernels of maps induced by inclusions in a filtration of pairs of spaces. Specifically, we note that persistence in this context is well defined, we prove that the persistence diagrams are stable, and we explain how to compute them.