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2001 | OriginalPaper | Buchkapitel

The Inhomogeneous Cauchy-Riemann Equation and Runge’s Theorem

verfasst von : Raghavan Narasimhan, Yves Nievergelt

Erschienen in: Complex Analysis in One Variable

Verlag: Birkhäuser Boston

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Holomorphic functions are characterized by the equation ∂É/∂z = 0. In this chapter, we shall study the equation ∂É/∂̄z = g when g has compact support. We shall obtain an explicit solution which leads to a variant of the Cauchy integral formula. This variant can often be used instead of the usual Cauchy formula, and has the advantage of not involving winding numbers. We shall illustrate this principle with a variant of the argument principle and a proof of the Runge theorem.

Metadaten
Titel
The Inhomogeneous Cauchy-Riemann Equation and Runge’s Theorem
verfasst von
Raghavan Narasimhan
Yves Nievergelt
Copyright-Jahr
2001
Verlag
Birkhäuser Boston
DOI
https://doi.org/10.1007/978-1-4612-0175-5_5

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