... +∞, lim
z↑0
e
1/z
= 0.
COMPLEX ANALYSIS
1
Douglas N. Arnold
2
References:
John B. Conway, Functions of One Complex Variable, Springer-Verlag, 1978.
Lars V. Ahlfors, Complex Analysis, McGraw-Hill, ... Ahlfors, Complex Analysis, McGraw-Hill, 1966.
Raghavan Narasimhan, Complex Analysis in One Variable, Birkh¨auser, 1985.
CONTENTS
I. The Complex Number System . . . . . . . . . ....
... +∞, lim
z↑0
e
1/z
= 0.
COMPLEX ANALYSIS
1
Douglas N. Arnold
2
References:
John B. Conway, Functions of One Complex Variable, Springer-Verlag, 1978.
Lars V. Ahlfors, Complex Analysis, McGraw-Hill, ... Ahlfors, Complex Analysis, McGraw-Hill, 1966.
Raghavan Narasimhan, Complex Analysis in One Variable, Birkh¨auser, 1985.
CONTENTS
I. The Complex Number System . . . . . . . . . ....
... is
connected iff it is path connected.
COMPLEX ANALYSIS 16
Proposition 4.6 Let f : D → C be holomorphic where D
is a region. If f
= 0, then f is constant.
COMPLEX ANALYSIS 17
5 Cauchy’s Theorem
Proposition ... D that has a limit point in D, then
f = g.
COMPLEX ANALYSIS 2
12 The upper half plane 47
13 Conformal mappings 50
14 Simple connectedness 53
COMPLEX ANALYSIS 30
Theorem...
... =
η
(
z
),
η
(
z
)
→
0 as
z
→
z
*
.
G12CAN Complex Analysis
Books: Schaum Outline book on Complex Variables (by M. Spiegel), or Churchill and Brown,
Complex Analysis and Applications. There should ... points (0, y), and the y axis becomes the IMAGINARY axis.
The complex conjugate
The complex conjugate of the complex number
z
is the complex number
z
= Re(
z
) − i Im(
z
).
Som...
... to focus on functions of several
complex variables as the generalization of func-
tions of one complex variable. The other was to
consider a function of one complex variable as
a map of a domain ... of
R
2n
with C
n
. We call M a real
hypersurface of the complex space
C
n
to dis-
tinguish it from a complex hypersurface, that is,
a complex
n − 1 dimensional submanifold of
C
n
....
... our
students, complex analysis is their first rigorous analysis (if not mathematics) class they take,
and these notes reflect this very much. We tried to rely on as few concepts from real analysis as
possible. ... the rectangular form, the right-hand side the polar form of this
complex number.
We now have five different ways of thinking about a complex number: the formal definition,
i...
... Contents
Chapter One - Complex Numbers
1.1 Introduction
1.2 Geometry
1.3 Polar coordinates
Chapter Two - Complex Functions
2.1 Functions of a real variable
2.2 Functions of a complex variable
... in case
0.
2.2 Functions of a complex variable. The real excitement begins when we consider
function f : D C in which the domain D is a subset of the complex numbers. In some
se...