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Forskningsartikel2018Vetenskapligt granskadÖppen tillgång

On n/p-Asymptotic Distribution Of Vector Of Weighted Traces Of Powers Of Wishart Matrices

Pielaszkiewicz, Jolanta; von Rosen, Dietrich; Singull, Martin

Sammanfattning

The joint distribution of standardized traces of 1/n XX' and of (1/n XX')(2), where the matrix X : p x n follows a matrix normal distribution is proved asymptotically to be multivariate normal under condition n/p ->(n,p ->infinity) c> 0. Proof relies on calculations of asymptotic moments and cumulants obtained using a recursive formula derived in Pielaszkiewicz et al. (2015). The covariance matrix of the underlying vector is explicitely given as a function of n and p.

Nyckelord

Wishart matrix; Multivariate normal distribution; Spectral distribution; Spectral moments; Covariance matrix

Publicerad i

Electronic Journal Of Linear Algebra
2018, Volym: 33, sidor: 24-40
Utgivare: INT LINEAR ALGEBRA SOC

    UKÄ forskningsämne

    Algebra och logik

    Publikationens identifierare

    DOI: https://doi.org/10.13001/1081-3810.3732

    Permanent länk till denna sida (URI)

    https://res.slu.se/id/publ/112436