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Department of Mathematics,
University of California San Diego

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Food for Thought

Finn Southerland

UCSD

Region counting on another level

Abstract:

Hyperplane arrangements cut space into `regions', which we like to count. Although all regions are $n$-dimensional, some are more bounded than others, captured by the `level' of a region. Can we refine our region counting by level? And how do level counts interact with other properties of the arrangement? This talk should be highly approachable, requiring only the ability to visualize high-dimensional objects.

January 20, 2026

1:00 PM

APM 7321

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