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Singularity of random Bernoulli matrices

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arxiv 1812.09016 v4 pith:KFBGRNXV submitted 2018-12-21 math.PR math.CO

classification math.PRmath.CO
keywords randombernoulliconsideredentriesgeneralizationsindependentmathbbmatrices
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abstract

For each $n$, let $M_n$ be an $n\times n$ random matrix with independent $\pm 1$ entries. We show that ${\mathbb P}\{\mbox{$M_n$ is singular}\}=(1/2+o_n(1))^n$, which settles an old problem. Some generalizations are considered.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. An algebraic inverse theorem for the quadratic Littlewood-Offord problem, and an application to Ramsey graphs

    math.CO 2019-09 accept novelty 8.0 of 10

    If a quadratic Bernoulli polynomial has a point probability much larger than 1/n, it is close to a quadratic form of low rank; a consequence bounds edge-count point probabilities in Ramsey graphs by n^{-1+o(1)}.

  2. Quantitative invertibility of random matrices: a combinatorial perspective

    math.PR 2019-08 conditional novelty 8.0 of 10

    For any fixed n×n complex matrix of norm up to 2^{n^0.001}, the least singular value of the matrix plus i.i.d. centered unit-variance complex noise is smaller than η with probability at most C(ξ) α, for α as small as ...

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