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math.PR2025
Local laws and spectral properties of deformed sparse random matrices
Ji Oon Lee, Inyoung Yeo
We consider deformed sparse random matrices of the form , where is a real symmetric sparse random matrix, is a random or deterministic, real, diagonal matrix whos…
math.PR2025
Fluctuations of the largest eigenvalues of transformed spiked Wigner matrices
Aro Lee, Ji Oon Lee
We consider a spiked random matrix model obtained by applying a function entrywise to a signal-plus-noise symmetric data matrix. We prove that the largest eigenvalue of this model,…