Quantales, persistence, and magnitude homology

Simon Cho

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arXiv · 1910.02905

Quantales, persistence, and magnitude homology

Simon Cho

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Abstract

We construct a nerve functor parametrized by a choice of quantale, exhibiting both the Vietoris-Rips complex and the magnitude nerve as instances of this nerve for different choices of monoidal structure on $\mathbb{R}$. Furthermore, the difference between how persistent homology processes the Vietoris-Rips complex and how magnitude homology processes the magnitude nerve is cast as a choice of whether or not to "localize" the corresponding nerves along $\mathbb{R}$ in a precise sense. Lastly, we mention some application-oriented observations naturally suggested by the perspective mentioned above.

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BibTeX RIS

Simon Cho. 2020-03-09. Quantales, persistence, and magnitude homology. https://arxiv.org/abs/1910.02905

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