Complex Integration and Cauchy's Theorem (Classic Reprint) - Tapa blanda

1. TimouGifOUT the tract, wherever it has seemed advisable, for the sake of clearness and brevity, to use the language of geometry, I have not hesitated to do so; but the reader should convince himself that all the arguments employed in Chapters I-IV are really arithmetical arguments, and are not based on geometrical intuitions. Thus, no use is made of the geometrical conception of an angle; when it is necessary to define an angle in Chapter I, a purely analytical definition is given. The fundamental theorems of the arithmetical theory of limits are assumed.
A number of obvious theorems are implicitly left to the reader; e.g. that a circle is a ' simple' curve (the coordinates of any point on x? + if = l may be written x = cost, y=-sut, 0 $ t s$ 2tt) ; that two ' simple' curves with a common end-point, but with no other common point, together form one ' simple' curve ; and several others of a like nature.
It is to be noted that almost all the difficulties, which ari.se in tho

Table of Contents

I Analysis Situs 3; IT Complex Integration 17; III Cauchy's Theorem 30; IV Miscellaneous Theorems 41; V The Calculus of "Residues 46; VI The Evaluation of Definite Integrals 04; VII Expansions in Series 73; VIII Historical Summary 77

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