Degree
Doctor of Philosophy (PhD)
Department
Mathematics
Document Type
Dissertation
Abstract
We show that the combinatorial matter of graph coloring is, in fact, quantum in the sense of satisfying the sum over all the possible intermediate state properties of a path integral. In our case, the topological field theory (TFT) with defects gives meaning to it. This TFT has the property that when evaluated on a planar trivalent graph, it provides the number of Tait-Coloring of it. Defects can be considered as a generalization of groups. With the Klein-four group as a 1-defect condition, we reinterpret graph coloring as sections of a certain bundle, distinguishing a coloring (global-sections) from a coloring process (local-sections.) These constructions also lead to an interpretation of the word problem, for a finitely presented group, as a cobordism problem and a generalization of (trivial) bundles at the level of higher categories.
Date
10-31-2024
Recommended Citation
Kumar, Amit, "Coloring Trivalent Graphs: A Defect TFT Approach" (2024). LSU Doctoral Dissertations. 6644.
https://repository.lsu.edu/gradschool_dissertations/6644
Committee Chair
Scott Baldridge
Included in
Discrete Mathematics and Combinatorics Commons, Elementary Particles and Fields and String Theory Commons, Geometry and Topology Commons