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most citedAsymptotic distribution of spiked eigenvalues in the large signal-plus-noise models

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math.ST2026

Phase Transition of Spectral Fluctuations in Large Gram Matrices with a Variance Profile: A Unified Framework for Sparse CLTs

Rui Wang, Guangming Pan, Dandan Jiang

We study the asymptotic spectral behavior of high-dimensional random Gram matrices with sparsity and a variance profile, motivated by applications in wireless communications. Speci…