Suppose that (z) is entire and that the harmonic function u(x, y) = Re[fz)] has an upper bound uo; that is, u(x, y) < uo for all points (x, y) in the xy-plane. Show that u(x, y) must be constant throughout the plane by applying Liouville's theorem to the function g(z) = exp[f(z)]. 12. %3D

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter9: Surfaces And Solids
Section9.4: Polyhedrons And Spheres
Problem 48E: Sketch the solid that results when the given circle of radius length 1 unit is revolved about the...
icon
Related questions
icon
Concept explainers
Topic Video
Question
Question 12
8.
Let Cj denote the positively oriented boundary of the square whose sides lie along
the lines x=±l_and y= +1 and let C be the positively oriented circle |z| = 4, as
shown below. Explain why
1
dz =
+1
dz
2z2
2z2 +1
C2
9.
Let C be the positively oriented circle centered at the point zo with radiusr>0.
Use a parametrization of C to show that
dz
= 27i
Cz- Zo
10.
Let C denote the positively oriented circle |z| = 1. Show that
2 sin(z)
Ti
dz =
4
- ni
cos(z)
a)
dz =
b)
4z + T
C
c z(z +8)
11.
Let C denote the positively oriented circle z - i = 2. Evaluate the integrals:
b)
e
a)
3
+ 2z
dz
dz
2
CZ +4
č (z - 1)
Suppose that fAz) is entire and that the harmonic function u(x, y) = Re[f(z)] has an
upper bound uo; that is, u(x, y) <uo for all points (x, y) in the xy-plane. Show that
u(x, y) must be constant throughout the plane by applying Liouville's theorem to
the function g(z) = exp[f{z)].
12.
Transcribed Image Text:8. Let Cj denote the positively oriented boundary of the square whose sides lie along the lines x=±l_and y= +1 and let C be the positively oriented circle |z| = 4, as shown below. Explain why 1 dz = +1 dz 2z2 2z2 +1 C2 9. Let C be the positively oriented circle centered at the point zo with radiusr>0. Use a parametrization of C to show that dz = 27i Cz- Zo 10. Let C denote the positively oriented circle |z| = 1. Show that 2 sin(z) Ti dz = 4 - ni cos(z) a) dz = b) 4z + T C c z(z +8) 11. Let C denote the positively oriented circle z - i = 2. Evaluate the integrals: b) e a) 3 + 2z dz dz 2 CZ +4 č (z - 1) Suppose that fAz) is entire and that the harmonic function u(x, y) = Re[f(z)] has an upper bound uo; that is, u(x, y) <uo for all points (x, y) in the xy-plane. Show that u(x, y) must be constant throughout the plane by applying Liouville's theorem to the function g(z) = exp[f{z)]. 12.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Sample space, Events, and Basic Rules of Probability
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Elementary Linear Algebra (MindTap Course List)
Elementary Linear Algebra (MindTap Course List)
Algebra
ISBN:
9781305658004
Author:
Ron Larson
Publisher:
Cengage Learning