Bottlenecking in graphs and a coarse Menger-type theorem
Abstract
We expand upon the notion of bottlenecking introduced in our earlier work, characterizing a spectrum of graphs and showing that this naturally extends to a concept of coarse bottlenecking. We show how the notion of bottlenecking provides a different approach to coarsening measures of connectedness than the Coarse Menger Conjecture proposed independently by Georgakopoulos and Papasoglu as well as Albrechtsen, Huynh, Jacobs, Knappe, and Wollan - which was recently disproved by a counterexample. We formulate and prove a Coarse Menger-type theorem, and also propose a coarse Erdős-Menger-type Conjecture, in the spirit of the Erdős-Menger conjecture which was proven after decades by Aharoni and Berger.
- Publication:
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arXiv e-prints
- Pub Date:
- June 2024
- DOI:
- 10.48550/arXiv.2406.07802
- arXiv:
- arXiv:2406.07802
- Bibcode:
- 2024arXiv240607802B
- Keywords:
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- Mathematics - Metric Geometry;
- Mathematics - Combinatorics;
- 51F30;
- 05C10
- E-Print:
- revised version, introduction completely rewritten, section 2 and 3 merged, section 5 substantially modified, 13 pages, 3 figures