Introduction to the Theory of Analytic Functions

Front Cover
Macmillan and Company, limited, 1898 - Analytic functions - 336 pages
 

Contents

The axis of real numbers
12
Imaginary numbers and the axis of imaginary numbers
13
Strokes
14
Complex numbers and the points of a plane
16
Absolute value and amplitude of x+in
17
Addition of two complex numbers
18
Ratio and multiplication II
20
The nth roots of unity 17 The nth power and nth root of a stroke
23
To find the point which divides in a given ratio r the stroke from a to
24
The centroid of a system of points
25
Examples 22233
26
The double ratios of four points
34
The bilinear transformation is equivalent to two inversions
42
The logarithm in general
48
The addition theorem of the exponential
54
Case of coincident fixed points
60
80
64
ART CHAPTER VI
67
Distinction between value when a and limit when έa 44 Upper and lower limits
68
Every sequence of constantly increasing real numbers admits a finite or infinite limit
69
Every sequence of real numbers has an upper and a lower limit
70
The necessary and sufficient condition that a sequence tends to a finite limit
71
Real functions of a real variable
72
Continuity of a function of a real variable
73
A continuous function of a real variable attains its upper and lower limits
74
Functions of two independent real variables
77
A continuous function f ŋ attains its upper and lower limits 53 Uniform continuity of a function of one real variable
80
Uniform continuity of a function of two real variables
81
Uniform convergence to a limit
82
CHAPTER VII
84
Continuity of the rational integral function THE RATIONAL ALGEBRAIC FUNCTION
85
855
87
The derivate of a function
88
The fundamental theorem of algebra 60 Proof of the fundamental theorem
91
61
93
CHAPTER VIII
96
64
99
Association of the terms of a series
101
Absolutely convergent series
105
Conditionally convergent series
106
Conversion of a single series into a double series
107
Conversion of a double series into a single series
110
CHAPTER IX
113
Uniform convergence
115
Uniform convergence implies continuity
117
Uniform and absolute convergence
118
The real power series
119
CHAPTER X
123
The circle of convergence
125
Uniform convergence of complex series
128
Cauchys theorem on the coefficients of a power series
129
Por does not vanish near x0
131
Criteria of identity of power series
132
CHAPTER XI
134
Remarks on Weierstrasss theorem
137
Applications of Weierstrasss theorem
139
Reversion of a power series
142
Taylors theorem for power series
144
The derivates of a power series
146
Differentiation of a series of power series term by term
147
CHAPTER XII
149
Natural boundaries
160
96
164
97
168
99
170
Mapping with the circular functions
175
Nonessential singular points
181
ΙΟΙ 104
182
Transcendental fractional functions
187
106
188
ΠΟ
189
CHAPTER XV
194
Formulæ for the other circular functions
204
Reconciliation of the definitions in the case of the power
211
ART PAGE 117 Case where the endvalues belong to different elements
214
Cauchys theorem
218
Residues
219
I20 General applications of the theory of residues
222
Special applications to real definite integrals
223
CHAPTER XVII
230
Isolated singularities of onevalued functions
232
Fouriers series
235
The partitionfunction
237
The theta functions
240
CHAPTER XVIII
243
A theorem on convergence
245
The functions ou u pu
246
Series for u gu ou in powers of u
249
Double periodicity
250
The zeros of u
251
Are P S σ periodic?
252
PAGE 273
253
CHAPTER XIX
255
Comparison of elliptic functions
258
Algebraic equation connecting the functions Pu
259
The addition theorem for u
260
Expression of an elliptic function by means of u
262
The addition theorem for u
263
Integration of an elliptic function
264
Expression of an elliptic function by means of ou
265
Relation connecting Pu ou
268
The function Puex
269
Connexion of the functions Pu and 93VIV
270
ALGEBRAIC FUNCTIONS 155 The algebraic function
293
Proof that an algebraic function is analytic
294
Puiseux series
297
Double points on the curve Fx y0
298
Riemann surface for an algebraic function 302
304
CHAPTER XXII
306
Cauchys definition of a monogenic function 164 Difficulties underlying Cauchys definition
311
Extended form of Taylors theorem
313
The potential
317
Schwarzs and Christoffels mapping of a straight line on a polygon
321
Greens theorem for two dimensions
322
Cauchys theorem
324
LIST OF BOOKS
327
INDEX
328
306
329
311
333
317
334
327
335

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