Algebraic representations of von Neumann algebras

2006/09/08 by Christian Pierre, Pierre, Christian · 1 citation
Mathematics · #Advanced Operator Algebra Research #Advanced Topics in Algebra #Spectral Theory in Mathematical Physics #math.GM #msc:14L17 #msc:47A05 #msc:47A67 #msc:47D03

paper · pdf · doi:10.48550/arxiv.math/0609232

48 pages

arxiv created 2010/03/09 · arxiv updated 2010/03/11

Abstract

An algebraic extended bilinear Hilbert semispace is proposed as being the natural representation space for the algebras of von Neumann.This bilinear Hilbert semispace has a well defined structure given by the representation space of an algebraic general bilinear semigroup over the product of sets of archimedean completions characterized by increasing degrees.This representation space,decomposing into subbisemimodules according to the pseudounramified or pseudoramified conjugacy classes,is in one-to-one correspondence with the corresponding cuspidal representation according to the Langlands global program.In this context,towers of von Neumann bisemialgebras on the graded bilinear Hilbert semispaces are constructed algebraically which allows to envisage the classification of the factors of von Neumann from an algebraic point of view.

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