On the function TreH+itK

We prove, for two free semicircularly distributed selfadjoint elements a and b in a type II1 von Neumann algebra with faithful trace τ, that the function t∈ℝ↦τ(exp(a+itb)) is positive definite. This shows that the Bessis-Moussa-Vilani conjecture holds for large random matrices in an asymptotic sense...

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Main Authors: Mark Fannes, Dénes Petz
Format: Article
Language:English
Published: Wiley 2002-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Online Access:http://dx.doi.org/10.1155/S0161171202011468
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author Mark Fannes
Dénes Petz
author_facet Mark Fannes
Dénes Petz
author_sort Mark Fannes
collection DOAJ
description We prove, for two free semicircularly distributed selfadjoint elements a and b in a type II1 von Neumann algebra with faithful trace τ, that the function t∈ℝ↦τ(exp(a+itb)) is positive definite. This shows that the Bessis-Moussa-Vilani conjecture holds for large random matrices in an asymptotic sense.
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spelling doaj-art-da007c479eb74fdebb368592e281be082025-02-03T07:23:52ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252002-01-0129738939310.1155/S0161171202011468On the function TreH+itKMark Fannes0Dénes Petz1Instituut voor Theoretische Fysika, Katholieke Universiteit Leuven, Leuven B-3001, BelgiumDepartment for Mathematical Analysis, Budapest University of Technology and Economics, Budapest XI. H-1521, HungaryWe prove, for two free semicircularly distributed selfadjoint elements a and b in a type II1 von Neumann algebra with faithful trace τ, that the function t∈ℝ↦τ(exp(a+itb)) is positive definite. This shows that the Bessis-Moussa-Vilani conjecture holds for large random matrices in an asymptotic sense.http://dx.doi.org/10.1155/S0161171202011468
spellingShingle Mark Fannes
Dénes Petz
On the function TreH+itK
International Journal of Mathematics and Mathematical Sciences
title On the function TreH+itK
title_full On the function TreH+itK
title_fullStr On the function TreH+itK
title_full_unstemmed On the function TreH+itK
title_short On the function TreH+itK
title_sort on the function treh itk
url http://dx.doi.org/10.1155/S0161171202011468
work_keys_str_mv AT markfannes onthefunctiontrehitk
AT denespetz onthefunctiontrehitk