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Parametrized homology via zigzag persistence

Journal Article · · Algebraic & Geometric Topology
 [1];  [2];  [3];  [4]
  1. Stanford Univ., CA (United States)
  2. Pomona College, Claremont, CA (United States)
  3. Wesleyan Univ., Middletown, CT (United States)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

This paper introduces parametrized homology, a continuous-parameter generalization of levelset zigzag persistent homology that captures the behavior of the homology of the fibers of a real-valued function on a topological space. This information is encoded as a “barcode” of real intervals, each corresponding to a homological feature supported over that interval; or, equivalently, as a persistence diagram. Points in the persistence diagram are classified algebraically into four classes; geometrically, the classes identify the distinct ways in which homological features perish at the boundaries of their interval of persistence. We study the conditions under which spaces fibered over the real line have a well-defined parametrized homology; here, we establish the stability of these invariants and we show how the four classes of persistence diagram correspond to the four diagrams that appear in the theory of extended persistence.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21); Gordon and Betty Moore Foundation; Alfred P. Sloan Foundation
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1604670
Journal Information:
Algebraic & Geometric Topology, Journal Name: Algebraic & Geometric Topology Journal Issue: 2 Vol. 19; ISSN 1472-2747
Publisher:
Mathematical Sciences PublishersCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (2)

Decomposition of Exact pfd Persistence Bimodules journal December 2019
Decomposition of exact pfd persistence bimodules preprint January 2016

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