Vu's distinct singular values conjecture for random symmetric Bernoulli matrices

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Let MnsymM_n^{sym} be a random symmetric matrix with Bernoulli pm1pm 1 entries.

Vu's distinct singular values conjecture. With probability 1−o(1)1-o(1), all the singular values of MnsymM_n^{sym} are distinct.

This conjecture is motivated by the study of repeated singular values of random symmetric matrices. The paper proves a strong quantitative version for singular values in a bulk portion of the spectrum, but the full statement remains unresolved.

References

Primary source

Yi Han, “Repeated singular values of a random symmetric matrix and decoupled singular value estimates”, arXiv:2504.15992 (2025).

Additional references

3 papers in this index state this conjecture (2020–2025). The statement above is taken from the most recent of them; the others are arXiv:2405.04999, arXiv:2005.02797.

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