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Interlace polynomials of lollipop and tadpole graphs

Christina L Eubanks-Turner, Kathryn Cole, Megan Lee

Abstract


In this paper, we examine interlace polynomials of lollipop and

tadpole graphs. The lollipop and tadpole graphs are similar in that they both

include a path attached to a graph by a single vertex. In this paper we give

both explicit and recursive formulas for each graph, which extends the work of

Arratia, Bollobas and Sorkin, among others. We also give special values,

examine adjacency matrices and behavior of coecients of these polynomials.


Keywords


graph polynomial, interlace polynomial, lollipop graph

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DOI: http://dx.doi.org/10.5614/ejgta.2022.10.1.14

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