A “Fourier Transform” for Multiplicative Functionson Non-Crossing Partitions

  • Authors:
  • Alexandru Nica;Roland Speicher

  • Affiliations:
  • affiliation{Department of Mathematics, University of Michigan,Ann Arbor, MI 48109-1003, USA E-mail:andu@math.lsa.umich.edu;Institut für Angewandte Mathematik, Universität Heidelberg,Im Neuenheimer Feld 294, D-69120 Heidelberg, Germany E-mail:roland.speicher@urz.uni-heidelberg.de

  • Venue:
  • Journal of Algebraic Combinatorics: An International Journal
  • Year:
  • 1997

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Abstract

We describe the structure of the group of normalizedmultiplicative functions on lattices of non-crossing partitions. Asan application, we give a combinatorial proof of a theorem of D.Voiculescu concerning the multiplication of free random variables