Cheng's algorithm for persistence modules over finite posets

Fersztand, Marc

doi:10.4230/artifacts.26093

Artifact

Cheng's algorithm for persistence modules over finite posets Software

Author Marc Fersztand

Part of: Collection: Supplementary Materials
License: GNU Lesser General Public License v3.0 only
Publication Date: 2026-05-27

Document Identifiers

DOI: 10.4230/artifacts.26093
URN: urn:nbn:de:0030-drops-260930

Author Details

Marc Fersztand

University of Oxford

Content

Software (Source Code for Cheng's algorithm): https://github.com/marcf-ox/sky-inv-quiv
archived version

Version/Status

Content created at: 2025-10-22
Status: Active (at the time of publication 2026-05-27)

Cite As Get BibTex

Marc Fersztand. Cheng's algorithm for persistence modules over finite posets (Software, Source Code for Cheng's algorithm). Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2026) https://doi.org/10.4230/artifacts.26093

Description

This package implements in Python an algorithm to compute the skyscaper invariant over a finite grid poset. This algorithm relies on the ideas described by Cheng and works for coefficients in any field.

Subject Classification

Keywords

Harder-Narasimhan Filtration
Skyscraper invariant
Cheng's algortihm
Persistence modules

Programming Languages

Python

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