Review of complex numbers Z1=R1e01 Z₂ =R2e02 z=Rei⁹ 01+02 R Z122 R1 R2e1+82) C82=Re¹(6+2x/8) The complex conjugate of z = Reie = a + bi is Z= Rea- bi, which is the reflection of z across the real axis. Do not use AI, I need real solution, attach required graph and code wherever needed. For reference I have attached the image, but if you need any reference then check out the book by Churchill only. (8=2xi/8 Consider a harmonic function : DR, where DCC is an open connected domain. 1. Harmonic Conjugates: ⚫ a. Prove that if u is harmonic on D and simply connected, then there exists a harmonic conjugate v such that fu+ iv is holomorphic on D. ⚫ b. Provide an explicit construction of given u in a specific example, such as u(x, y) = x² - y². 2. Maximum Principle for Harmonic Functions: ⚫ a. State and prove the Maximum Principle for harmonic functions, asserting that if u attains its maximum (or minimum) value in the interior of D, then u is constant. ⚫ b. Apply the Maximum Principle to show that a non-constant harmonic function cannot attain its maximum value inside a bounded domain. 3. Dirichlet Problem: ⚫a. Formulate the Dirichlet problem for finding a harmonic function on a bounded domain D with prescribed continuous boundary values. ⚫ b. Prove the existence and uniqueness of the solution to the Dirichlet problem using the method of harmonic conjugates or Perron's method. 4. Green's Function: ⚫ a. Define Green's function G(z, C) for the domain D with a pole at Ċ € D. ⚫ b. Derive the representation of a harmonic function u on D in terms of its boundary values and Green's function. Note that |z2zz Re Re-i = = R²e° = R² => |z|= √√√zz = √√√a² + b² = R.

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
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Chapter4: Complex Numbers
Section: Chapter Questions
Problem 7T
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Review of complex numbers
Z1=R1e01
Z₂ =R2e02
z=Rei⁹
01+02
R
Z122 R1 R2e1+82)
C82=Re¹(6+2x/8)
The complex conjugate of z = Reie = a + bi is
Z= Rea- bi,
which is the reflection of z across the real axis.
Do not use AI, I need real solution, attach required graph and code wherever needed.
For reference I have attached the image, but if you need any reference then check out the book by
Churchill only.
(8=2xi/8
Consider a harmonic function : DR, where DCC is an open connected domain.
1. Harmonic Conjugates:
⚫ a. Prove that if u is harmonic on D and simply connected, then there exists a harmonic
conjugate v such that fu+ iv is holomorphic on D.
⚫ b. Provide an explicit construction of given u in a specific example, such as u(x, y) =
x² - y².
2. Maximum Principle for Harmonic Functions:
⚫ a. State and prove the Maximum Principle for harmonic functions, asserting that if u attains
its maximum (or minimum) value in the interior of D, then u is constant.
⚫ b. Apply the Maximum Principle to show that a non-constant harmonic function cannot
attain its maximum value inside a bounded domain.
3. Dirichlet Problem:
⚫a. Formulate the Dirichlet problem for finding a harmonic function on a bounded domain
D with prescribed continuous boundary values.
⚫ b. Prove the existence and uniqueness of the solution to the Dirichlet problem using the
method of harmonic conjugates or Perron's method.
4. Green's Function:
⚫ a. Define Green's function G(z, C) for the domain D with a pole at Ċ € D.
⚫ b. Derive the representation of a harmonic function u on D in terms of its boundary values
and Green's function.
Note that
|z2zz Re Re-i =
= R²e° = R²
=>
|z|= √√√zz = √√√a² + b² = R.
Transcribed Image Text:Review of complex numbers Z1=R1e01 Z₂ =R2e02 z=Rei⁹ 01+02 R Z122 R1 R2e1+82) C82=Re¹(6+2x/8) The complex conjugate of z = Reie = a + bi is Z= Rea- bi, which is the reflection of z across the real axis. Do not use AI, I need real solution, attach required graph and code wherever needed. For reference I have attached the image, but if you need any reference then check out the book by Churchill only. (8=2xi/8 Consider a harmonic function : DR, where DCC is an open connected domain. 1. Harmonic Conjugates: ⚫ a. Prove that if u is harmonic on D and simply connected, then there exists a harmonic conjugate v such that fu+ iv is holomorphic on D. ⚫ b. Provide an explicit construction of given u in a specific example, such as u(x, y) = x² - y². 2. Maximum Principle for Harmonic Functions: ⚫ a. State and prove the Maximum Principle for harmonic functions, asserting that if u attains its maximum (or minimum) value in the interior of D, then u is constant. ⚫ b. Apply the Maximum Principle to show that a non-constant harmonic function cannot attain its maximum value inside a bounded domain. 3. Dirichlet Problem: ⚫a. Formulate the Dirichlet problem for finding a harmonic function on a bounded domain D with prescribed continuous boundary values. ⚫ b. Prove the existence and uniqueness of the solution to the Dirichlet problem using the method of harmonic conjugates or Perron's method. 4. Green's Function: ⚫ a. Define Green's function G(z, C) for the domain D with a pole at Ċ € D. ⚫ b. Derive the representation of a harmonic function u on D in terms of its boundary values and Green's function. Note that |z2zz Re Re-i = = R²e° = R² => |z|= √√√zz = √√√a² + b² = R.
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