Let U denote the upper half of the complex plane; i.e., U = {z E C | Im(z) >0}. Let f: UU and g: U U be given by 2z+1 52 +3 f(z) = Find F. g(z) 1 - 3z 52-21 (ii) Hence show that f is invertible and find its inverse. (iii) The fixed point set, F, of f is defined as F = {z EU | f(z) = z}.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Let U denote the upper half of the complex plane; i.e.,
U = {z E C | Im(z) >0}.
Let f: UU and g: U → U be given by
2z+1
5z + 3
f(z) =
=
Find F.
g(z)
1 - 3z
52 - 2
(ii) Hence show that f is invertible and find its inverse.
(iii) The fixed point set, F, of f is defined as
F = {z EU | f(z) = z}.
Transcribed Image Text:Let U denote the upper half of the complex plane; i.e., U = {z E C | Im(z) >0}. Let f: UU and g: U → U be given by 2z+1 5z + 3 f(z) = = Find F. g(z) 1 - 3z 52 - 2 (ii) Hence show that f is invertible and find its inverse. (iii) The fixed point set, F, of f is defined as F = {z EU | f(z) = z}.
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