Calculating Higher Digraph Homotopy Groups

Stephen Theriault; Jie Wu; Shing-Tung Yau; Mengmeng Zhang

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arXiv · 2504.04119

Calculating Higher Digraph Homotopy Groups

Stephen Theriault·Jie Wu·Shing-Tung Yau·Mengmeng Zhang

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Abstract

We give the first tractable and systematic examples of nontrivial higher digraph homotopy groups. To do this we define relative digraph homotopy groups and show these satisfy a long exact sequence analogous to the relative homotopy groups of spaces. We then define digraph suspension and Hurewicz homomorphisms and show they commute with each other. The existence of nontrivial digraph homotopy groups then reduces to the existence of corresponding groups in the degree 1 path homology of digraphs.

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BibTeX RIS

Stephen Theriault, Jie Wu, Shing-Tung Yau, Mengmeng Zhang. 2025-04-05. Calculating Higher Digraph Homotopy Groups. https://arxiv.org/abs/2504.04119

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