Complex Analysis

A branch of mathematical analysis that studies functions of complex numbers. Explore foundational theorems, conformal mappings, residue calculus, and applications across physics, engineering, and number theory.

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Standard Article

Cauchy's Integral Theorem

A fundamental theorem in complex analysis stating that the contour integral of a holomorphic function around a closed curve is zero, provided the function is analytic everywhere inside and on the curve.

Primer

Introduction to Residue Calculus

A step-by-step guide to evaluating real integrals using complex contour integration. Covers simple poles, higher-order poles, and the residue theorem with worked examples.

Research Note

Riemann Surfaces in Modern Geometry

Exploring the topological and algebraic structures underlying multi-valued complex functions. Bridges classical analysis with algebraic geometry and string theory compactifications.

Visualization

Interactive Guide to Conformal Mappings

Visualize angle-preserving transformations of the complex plane. Explore how MΓΆbius transformations, exponential maps, and Joukowski airfoils reshape domains while preserving analyticity.

Standard Article

Liouville's Theorem & Bounded Entire Functions

Proofs, corollaries, and applications of Liouville's theorem. Demonstrates why bounded entire functions must be constant and its role in proving the fundamental theorem of algebra.

Standard Article

Laurent Series & Singularities

Extension of Taylor series to include negative powers. Classifies isolated singularities (removable, poles, essential) and connects to principal parts and residue extraction.

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