Some patterned matrices with independent entries

Article Type

Research Article

Publication Title

Random Matrices: Theory and Application


Patterned random matrices such as the reverse circulant, the symmetric circulant, the Toeplitz and the Hankel matrices and their almost sure limiting spectral distribution (LSD), have attracted much attention. Under the assumption that the entries are taken from an i.i.d. sequence with finite variance, the LSD are tied together by a common thread - the 2kth moment of the limit equals a weighted sum over different types of pair-partitions of the set {1, 2,..., 2k} and are universal. Some results are also known for the sparse case. In this paper, we generalize these results by relaxing significantly the i.i.d. assumption. For our models, the limits are defined via a larger class of partitions and are also not universal. Several existing and new results for patterned matrices, their band and sparse versions, as well as for matrices with continuous and discrete variance profile follow as special cases.



Publication Date



Open Access, Green

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