Abstract

The Tutte polynomial of a graph or a matroid, named after W. T. Tutte, has the important universal property that essentially any multiplicative graph or network invariant with a deletion and contraction reduction must be an evaluation of it. The deletion and contraction operations are natural reductions for many network models arising from a wide range of problems at the heart of computer science, engineering, optimization, physics, and biology. Even though the invariant is #P-hard to compute in general, there are many occasions when we face the task of computing the Tutte polynomial for some families of graphs or matroids. In this work, we compile known formulas for the Tutte polynomial of some families of graphs and matroids. Also, we give brief explanations of the techniques that were used to find the formulas. Hopefully, this will be useful for researchers in Combinatorics and elsewhere.

Highlights

  • As researchers in Combinatorics, we face the task of computing an evaluation of the Tutte polynomial of a family of graphs or matroids

  • Not surprisingly, we find out that a formula was known for a class of graphs or matroids that contains our family

  • Our hope is for researchers to have a place to look for a Tutte polynomial before engaging in the search for the Tutte polynomial formula for the considered family

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Summary

Introduction

As researchers in Combinatorics, we face the task of computing an evaluation of the Tutte polynomial of a family of graphs or matroids. We present along with the formulas, some explanation of the techniques used to compute them This may provide tools for computing the Tutte polynomials of new International Journal of Combinatorics families of graphs or matroids. This survey can be considered a companion 1. We are not presenting evaluations, that are an immense area of research for the Tutte polynomial, nor analysing the complexity of computing the invariant for the different families. For the former, we strongly recommend the book of Welsh 2 , for the latter, we recommend Noble’s book chapter 3. This is because we really consider the graph G as the graphic matroid MG

Definitions
The Rank-Nullity Generating Function Definition
Deletion and Contraction
Internal and External Activity
Equivalent Polynomials
Transfer-Matrix Method
Splitting the Problem
Aplication
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