Unshaded planar algebras and their associated II1 factors
Abstract
Guionnet et al. gave a construction of a II1 factor associated to a subfactor planar algebra. In this paper we define an unshaded planar algebra. To any unshaded planar algebra P we associate a finite von Neumann algebra MP. We prove that MP is a II1 factor that contains a generic maximal abelian subalgebra called the cup subalgebra.
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