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The sparse circular law, revisited

Authors: Sah, Ashwin; Sahasrabudhe, Julian; Sawhney, Mehtaab;

The sparse circular law, revisited

Abstract

Abstract Let be an matrix with iid entries distributed as Bernoulli random variables with parameter . Rudelson and Tikhomirov, in a beautiful and celebrated paper, show that the distribution of eigenvalues of is approximately uniform on the unit disk as as long as , which is the natural necessary condition. In this paper, we give a much simpler proof of this result, in its full generality, using a perspective we developed in our recent proof of the existence of the limiting spectral law when is bounded. One feature of our proof is that it entirely avoids the use of ‐nets and, instead, proceeds by studying the evolution of the singular values of the shifted matrices as we incrementally expose the randomness in the matrix.

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United Kingdom
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Keywords

sparse matrix, Eigenvalues, singular values, and eigenvectors, Random matrices (algebraic aspects), 4901 Applied Mathematics, Probability (math.PR), eigenvalues, random matrix, circular law, 4905 Statistics, Random matrices (probabilistic aspects), 49 Mathematical Sciences, FOS: Mathematics, Mathematics - Combinatorics, Combinatorics (math.CO), Mathematics - Probability

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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