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math.FA2014
Leibniz seminorms in probability spaces
Adam Besenyei, Zoltan Leka
In this paper we study the (strong) Leibniz property of centered moments of bounded random variables. We shall answer a question raised by M. Rieffel on the non-commutative standar…
math.FA2014
A note on extremal decomposition of covariances
Zoltan Leka
We shall present an elementary approach to extremal decompositions of (quantum) covariance matrices determined by densities. We give a new proof on former results and provide a sha…
math.FA2014
A note on central moments in -algebras
Zoltán Léka
We present sharp estimates of the central moments of normal elements in -algebras. We shall obtain an upper bound for the weak moments of general elements as well…