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YouTube

Political Geometry - Voting Districts, Compactness, and Ideas About Fairness

Joint Mathematics Meetings via YouTube

Overview

Explore the intersection of mathematics and politics in this thought-provoking lecture on political geometry and voting districts. Delve into the concept of "compactness" and its implications for fairness in electoral systems. Examine real-world examples of gerrymandering, including the infamous "Gerry-mander" and controversial districts across the United States. Learn about mathematical concepts such as the Isoparametric Theorem, skew, dispersion, and various compactness metrics. Analyze toy examples and compactness scores to understand their practical applications in assessing district shapes. Investigate discrete area and perimeter calculations, and explore different metrics and methods used in political geometry. Gain insights into extreme gerrymandering cases and their impact on democratic processes. Conclude with a discussion on the broader implications of these mathematical approaches for ensuring fair representation in electoral systems.

Syllabus

Introduction
Framing Question
The Steps
Garys Salamander
Illinois 4th District
Florida 5th District
Maryland 3rd District
Pennsylvania 7th District
North Carolina 12 District
Isoparametric Theorem
Skew
Inverted Ness
Skew and convex hull
Dispersion
Compactness
Toy Example
Compactness Scores
Discrete Area and Perimeter
Metrics and Methods
North Carolina
Extreme gerrymandering
Conclusions
Questions

Taught by

Joint Mathematics Meetings

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