Let f(z) =u(x,y) + iv(x, y) be an entire function satisfying v(x, y) > x for all z= x+yi, where u(x, y) = Re(f(z)) and v(x,y) = Im(f(z)). Show that f(z) is a polynomial of degree 1.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section: Chapter Questions
Problem 12T
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6. Let f(z) = u(x, y) +iv(x, y) be an entire function satisfying
v(x, y) >x
for all z= x+yi, where u(x, y) = Re(f(z)) and v(x, y) = Im(f(z)). Show that f(z)
is a polynomial of degree 1.
Transcribed Image Text:6. Let f(z) = u(x, y) +iv(x, y) be an entire function satisfying v(x, y) >x for all z= x+yi, where u(x, y) = Re(f(z)) and v(x, y) = Im(f(z)). Show that f(z) is a polynomial of degree 1.
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