Ali Asghar Rezaei | Searcharxiv

arXiv2010

Morse Theory for C*-Algebras: A Geometric Interpretation of Some Noncommutative Manifolds

The approach we present is a modification of the Morse theory for unital C*-algebras. We provide tools for the geometric interpretation of noncommutative CW complexes. These objects were introduced and studied in [2],[7] and [14]. Some examples to illustrate these geometric information in practice are given. A classification of unital C*-algebras by noncommutative CW complexes and the modified Morse functions on them is the main object of this work.

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arXiv2009

Some Noncommutative Constructions and Their Associated NCCW Complexes

In this article some noncommutative topological objects such as NC mapping cone and NC mapping cylinder are introduced. We will see that these objects are equipped with the NCCW complex structure of [PEDERSEN]. As a generalization we introduce the notions of NC mapping cylindrical and conical telescope. Their relations with NC mappings cone and cylinder are studied. Some results on their K0 and K1 groups are obtained and the cyclic six term exact sequence theorem for their k-groups are proved. Finally we explain their NCCW coplex structure and the conditions in which these objects admit NCCW complex structures.

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