Graduation Year

2025

Document Type

Open Access Senior Thesis

Degree Name

Bachelor of Arts

Department

Mathematics

Second Department

Computer Science

Reader 1

Sarah Cannon

Reader 2

Christina Edholm

Terms of Use & License Information

Terms of Use for work posted in Scholarship@Claremont.

Rights Information

© 2025 Anne K Friedman

Abstract

This paper aims to better characterize dual graphs derived from state districting maps by developing random graph models that replicate their structural properties. Dual graphs provide a simplified way to represent districting maps, making it computationally feasible to analyze their structure. These representations enable researchers, legislators, and courts to assess district compactness, detect signs of gerrymandering, and generate alternative districting plans. A deeper understanding of the structural patterns of these dual graphs can help researchers choose or design more effective algorithms for redistricting analysis. The random graph models developed in this study serve as testbeds for evaluating algorithmic approaches to creating fair and unbiased districting plans. Through a variety of edge-adding and edge-removal strategies, this paper identifies models that closely approximate three key statistics of real-world dual graphs: the average degree, the spanning tree constant asymptote, and the average spanning tree constant.

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