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Conference Papers Discrete Mathematics and Theoretical Computer Science Year : 2014

Coloring Rings in Species

Abstract

We present a generalization of the chromatic polynomial, and chromatic symmetric function, arising in the study of combinatorial species. These invariants are defined for modules over lattice rings in species. The primary examples are graphs and set partitions. For these new invariants, we present analogues of results regarding stable partitions, the bond lattice, the deletion-contraction recurrence, and the subset expansion formula. We also present two detailed examples, one related to enumerating subgraphs by their blocks, and a second example related to enumerating subgraphs of a directed graph by their strongly connected components.
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Dates and versions

hal-01207543 , version 1 (01-10-2015)

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Jacob A. White. Coloring Rings in Species. 26th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2014), 2014, Chicago, United States. pp.691-702, ⟨10.46298/dmtcs.2434⟩. ⟨hal-01207543⟩

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