The eigenvalue spacing of a random unipotent matrix in its action on lines

Jason Fulman

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arXiv · math/9905149

The eigenvalue spacing of a random unipotent matrix in its action on lines

Jason Fulman

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Abstract

The eigenvalue spacing of a uniformly chosen random finite unipotent matrix in its permutation action on lines is studied. We obtain bounds for the mean number of eigenvalues lying in a fixed arc of the unit circle and offer an approach toward other asymptotics. For the case of all unipotent matrices, the proof gives a probabilistic interpretation to identities of Macdonald from symmetric function theory. For the case of upper triangular matrices over a finite field, connections between symmetric function theory and a probabilistic growth algorithm of Borodin emerge..

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Jason Fulman. 1999-05-24. The eigenvalue spacing of a random unipotent matrix in its action on lines. https://arxiv.org/abs/math/9905149

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