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A Schauder Basis for Multiparameter Persistence and Persistence Variants

Zachariah Ross <thomas.z@ufl.edu>, University of Florida

Abstract:

To help combine statistics and machine learning with multiparameter persistence, we would like to map signed barcodes to a Banach space or Hilbert space. We use iteratively refined triangulations to define a Schauder basis of compactly supported Lipschitz functionals. We prove that evaluation of these functionals embeds signed barcodes into sequence space via a map which is both linear, and Lipschitz with respect to the 1-Wasserstein distance. I will illustrate these results with examples for one-parameter persistence, two-parameter persistence, and the variant called mixup barcodes.

Scheduled for: 2026-03-12 11:35 AM: Applied & Data Session #3.4 in Heritage Hall Building 104

Icon: video Webinar

Status: Accepted

Collection: Applied Topology and Topological Data

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