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arXiv · 2410.20738

Equiangular lines and eigenvalue multiplicities

Yufei Zhao
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Abstract

Expository article on the problem of determining the maximum number of equiangular lines with a fixed angle, and the associated problem of second eigenvalue multiplicity in graphs.

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Yufei Zhao. 2024-10-28. Equiangular lines and eigenvalue multiplicities. https://doi.org/10.1090/noti3018

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