The Index Semigroup Induced by Finite Trees

Index Morphisms and Classification of von Neumann Algebras Induced by Finite Trees
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Artikelbeschreibung

In this monograph, we study graph-index, Watatani's extended Jones index, and the relations between them. From this investigation, we realize that graph-index of graphs and Jones index of von Neumann algebras generated by "graph groupoids" are equivalent in a certain sense, whenver given graphs are finite trees. We provides the classification of graph-groupoid von Neumann algebras induced by finite trees with respect to these equivalent indexes. By understanding the indexings as morphisms, we establish actions of morphisms and construct the corresponding algebraic structure, called the "index semigroup." We study the fundamental properties of them. As application, we consider the connection between our index semigroup and K-groups of finite-tree-groupoid von Neumann algebras.

Produktsicherheit

Hersteller: LAP Lambert Academic Publishing
Anschrift: Brivibas gatve 197
LV-1039 Riga
Kontakt: customerservice@vdm-vsg.de

Personeninformation

Master Degrees: Sungkyunkwan University and University of Iowa (Math) / Ph.D : University of Iowa (Math) / Current Position: Assistant Professor in Saint Ambrose University
Mehr von Cho, Ilwoo

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