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1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeFeb 12th 2021
   • PermaLink
   Author: Urs
   Format: MarkdownItexPrompted by the recent (accidental) creation of an entry _[[isobar]]_ (nForum discussion [here](https://nforum.ncatlab.org/discussion/12167/isobar/?Focus=89148#Comment_89148)) I take the occasion here to highlight that iso-hypersurfaces are an example of the Pontryagin-construction, whence Pontryagin's theorem brings Cohomotopy to bear on (a new kind of) topological data analysis, as proposed by Franek-Krčál et. al. And I think I'll put their references into a separate entry _[[cohomotopy in topological data analysis -- references]]_ now, to be more easily `!include`-ed into relevant entries. <a href="https://ncatlab.org/nlab/revision/isosurface/1">v1</a>, <a href="https://ncatlab.org/nlab/show/isosurface">current</a>

   Prompted by the recent (accidental) creation of an entry isobar (nForum discussion here) I take the occasion here to highlight that iso-hypersurfaces are an example of the Pontryagin-construction, whence Pontryagin’s theorem brings Cohomotopy to bear on (a new kind of) topological data analysis, as proposed by Franek-Krčál et. al.

   And I think I’ll put their references into a separate entry cohomotopy in topological data analysis – references now, to be more easily !include-ed into relevant entries.

   v1, current