A Local Prime Factor Decomposition Algorithm for Strong Product Graphs
Abstract
This work is concerned with the prime factor decomposition (PFD) of strong product graphs. A new quasi-linear time algorithm for the PFD with respect to the strong product for arbitrary, finite, connected, undirected graphs is derived. Moreover, since most graphs are prime although they can have a product-like structure, also known as approximate graph products, the practical application of the well-known "classical" prime factorization algorithm is strictly limited. This new PFD algorithm is based on a local approach that covers a graph by small factorizable subgraphs and then utilizes this information to derive the global factors. Therefore, we can take advantage of this approach and derive in addition a method for the recognition of approximate graph products.
Cite
@article{arxiv.1705.03817,
title = {A Local Prime Factor Decomposition Algorithm for Strong Product Graphs},
author = {Marc Hellmuth},
journal= {arXiv preprint arXiv:1705.03817},
year = {2017}
}