Noncommutative Bundles and Instantons in Tehran

Abstract

We present an introduction to the use of noncommutative geometry for gauge theories with emphasis on a construction of instantons for a class of four dimensional toric noncommutative manifolds. These instantons are solutions of self-duality equations and are critical points of an action functional. We explain the crucial role of twisted symmetries as well as methods from noncommutative index theorems.

64 pages; v2: major changes, parts rewritten, references added. Based on lectures delivered by GL at the ``International Workshop on Noncommutative Geometry NCG2005'', Institute for Studies in Theoretical Physics and Mathematics (IPM), Tehran, Iran, September 2005

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