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21-08-2021 | Original Paper

Rational homotopy theory methods in graph theory

Author: Mahmoud Benkhalifa

Published in: Applicable Algebra in Engineering, Communication and Computing | Issue 4/2023

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Abstract

The article delves into the intersection of rational homotopy theory and graph theory, leveraging Sullivan's work to define new numerical invariants for finite graphs. These invariants, including formal dimension, Lusternik-Schnirelmann category, cohomology Euler-Poincaré characteristic, and Koszul-Poincaré series, are derived from algebraic homotopy invariants. The main theorem establishes relationships between these invariants and graph colorability, offering a new approach to solving classical problems in graph theory. Additionally, the paper provides an alternative solution to a problem involving homogeneous polynomials, highlighting the practical applications of these theoretical developments.

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Metadata
Title
Rational homotopy theory methods in graph theory
Author
Mahmoud Benkhalifa
Publication date
21-08-2021
Publisher
Springer Berlin Heidelberg
Published in
Applicable Algebra in Engineering, Communication and Computing / Issue 4/2023
Print ISSN: 0938-1279
Electronic ISSN: 1432-0622
DOI
https://doi.org/10.1007/s00200-021-00522-7

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