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arXiv · 2403.09803

Tiny non-Leighton complexes

Natalia S. Dergacheva·Anton A. Klyachko
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Abstract

How complex must two finite 2-complexes be to admit a common, but not finite common, covering? We obtain an almost answer: the minimum possible number of triangles in a pseudo-simplicial triangulation of each complex is 3, 4, or 5.

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Natalia S. Dergacheva, Anton A. Klyachko. 2025-04-07. Tiny non-Leighton complexes. https://doi.org/10.1007/s10711-025-01005-6

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