Gaussian approximation of Gaussian scale mixtures.

Autor: Letac, Gérard
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Jazyk: angličtina
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Druh dokumentu: Non-fiction
ISSN: 0023-5954
Abstrakt: Abstract: For a given positive random variable V>0 and a given Z∼N(0,1) independent of V, we compute the scalar t0 such that the distance in the L2(R) sense between ZV1/2 and Zt0--√ is minimal. We also consider the same problem in several dimensions when V is a random positive definite matrix.
Databáze: Katalog Knihovny AV ČR