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- W1978416015 abstract "The three standard products (the Cartesian, the direct and the strong product) of undirected graphs have been wellinvestigated, unique prime factor decomposition (PFD) are known and polynomial time algorithms have been established for determining the prime factors. For directed graphs, unique PFD results with respect to the standard products are known. However, there is still a lack of algorithms, that computes the PFD of directed graphs with respect to the direct and the strong product in general. In this contribution, we focus on the algorithmic aspects for determining the PFD of directed graphs with respect to the strong product. Essential for computing the prime factors is the construction of a so-called Cartesian skeleton. This article introduces the notion of the Cartesian skeleton of directed graphs as a generalization of the Cartesian skeleton of undirected graphs. We provide new, fast and transparent algorithms for its construction. Moreover, we present a first polynomial time algorithm for determining the PFD with respect to the strong product of arbitrary connected digraphs." @default.
- W1978416015 created "2016-06-24" @default.
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- W1978416015 date "2015-02-01" @default.
- W1978416015 modified "2023-10-14" @default.
- W1978416015 title "On the Cartesian skeleton and the factorization of the strong product of digraphs" @default.
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- W1978416015 doi "https://doi.org/10.1016/j.tcs.2014.10.045" @default.
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