Year

2017

Degree Name

Doctor of Philosophy

Department

School of Mathematics and Applied Statistics

Abstract

In this thesis we study how decompositions of a quasi-lattice ordered group (G; P) relate to decompositions of the Nica-Toeplitz algebra NTX and Cuntz-Nica-Pimsner algebra NOX of a compactly aligned product system X over P. In particular, we are interested in the situation where (G; P) may be realised as the semidirect product of quasi-lattice ordered groups. Our results generalise Deaconu's work on iterated Toeplitz and Cuntz-Pimsner algebras [13]. As a special case we consider when P = Nk and X is the product system associated to a finitely aligned higher-rank graph, and Nk is decomposed as Nk-1xN.

FoR codes (2008)

0101 PURE MATHEMATICS, 010108 Operator Algebras and Functional Analysis

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Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong.