Eulerian 2-Complexes

Fuente: arXiv
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Main Authors: Hammack, Richard H., Kainen, Paul C.
Format: Preprint
Published: 2023
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author Hammack, Richard H.
Kainen, Paul C.
author_facet Hammack, Richard H.
Kainen, Paul C.
contents It is shown that Euler's theorem for graphs can be generalized for 2-complexes. Two notions that generalize cycle and Eulerian tour are introduced (``circlet'' and ``Eulerian cover''), and we show that for a strongly-connected, pure 2-complex, the following are equivalent: (i) each edge meets a positive even number of 2-cells (faces), (ii) the complex can be decomposed as the face-disjoint union of circlets, and (iii) the complex has an Eulerian cover. A number of examples are provided.
format Preprint
id arxiv_https___arxiv_org_abs_2401_00323
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Eulerian 2-Complexes
Hammack, Richard H.
Kainen, Paul C.
Combinatorics
57Q35, 05C40
It is shown that Euler's theorem for graphs can be generalized for 2-complexes. Two notions that generalize cycle and Eulerian tour are introduced (``circlet'' and ``Eulerian cover''), and we show that for a strongly-connected, pure 2-complex, the following are equivalent: (i) each edge meets a positive even number of 2-cells (faces), (ii) the complex can be decomposed as the face-disjoint union of circlets, and (iii) the complex has an Eulerian cover. A number of examples are provided.
title Eulerian 2-Complexes
topic Combinatorics
57Q35, 05C40
url https://arxiv.org/abs/2401.00323