## Complex Analysis

Complex Analysis. Instructor: Prof. P. A. S. Sree Krishna, Department of Mathematics, IIT Guwahati. This course provides an introduction to complex analysis, covering topics: Complex numbers, the topology of the complex plane, the extended complex plane and its representation using the sphere. Complex functions and their mapping properties, their limits, continuity and differentiability, analytic functions, analytic branches of a multiple-valued function. Complex integration, Cauchy's theorem, Cauchy's integral formulae. Power series, Taylor's series, zeroes of analytic functions, Rouche's theorem, open mapping theorem. Mobius transformations and their properties. Isolated singularities and their classification, Laurent's series, Cauchy's residue theorem, the argument principle.
(from **nptel.ac.in**)

Lecture 21 - Cauchy's Integral Formula and its Consequences |

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