Math 434  Complex Variables


Spring 2015

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Course Syllabus
Tentative Homework Problems

DATE 8th Edition ASSIGNMENT  9th Edition ASSIGNMENT 
02/04
Properties of Complex Numbers
Section 1.1-2, p. 5[4]: #1, 2, 4, 9
Section 1.3, p. 8[7]: #1, 2, 6, 7
Section 1.4, p. 12[13]: #1, 5c, 6b
Section 1.5, p. 14[16]: #1(a,d), 2a

02/06
Section 1.4, p. 12[13]: #,5c, 6b, 3
Section 1.5, p. 14[16]: #5, 9, 10, 14
Section 1.8[1.9], p. 22[23]: #1, 2, 4, 5

02/09
Section 1.8[1.9], p. 22[23]:  #3, 6, 10
Section 1.1-1.5[6] Homework due on Wednesday

02/11
Roots of Complex Numbers
Section 1.9-1.10, p. 29:  #1, 2, 3, 6[typo: “…zeros to factor z4+4 into…”]

Section 1.10-1.11, p. 30:  #1, 2, 3, 4, 6
02/13
Section 1.9-1.10, p. 29:  #7, 8
Section 2.12, p. 37:  #1, 2, 3, 4
Section 1.10-1.11, p. 30:  #7, 8
Section 2.14, p. 43:  #1, 2a, 3, 4
02/16
Determine the functions that implement contraction and dilation mappings.
Section 2.15-2.18, p. 55:  Use limit def to prove that lim(z-> 1+2i) 3z-4 = -1+6i.  Then just do #2(a).
Quiz Wednesday over 8th Edition Sections 1.6-1.10
Determine the functions that implement contraction and dilation mappings.
Section 2.15-2.18, p. 54:  Use limit def to prove that lim(z-> 1+2i) 3z-4 = -1+6i.  Then just do #2(a).
Quiz Wednesday over 9th Edition Sections 1.7-1.11
02/18
Quiz 1
Section 2.15-18, p. 55:  #1(b), 2(a), 5, 3, 10, 11

Section 2.15-18, p. 54:  #1(b), 2(a), 5, 3, 10, 11
02/20
Derivatives of Complex Functions
Section 2.19-2.20
I.    Given w=3z^2-z, use the limit definition to show that dw/dz = 6z-1 .
II.    Given w = 1/z, use the limit definition to show that dw/dz = -1/z^2 .
III.    p. 62:  #8

Section 2.19-2.20
I.    Given w=3z^2-z, use the limit definition to show that dw/dz = 6z-1 .
II.    Given w = 1/z, use the limit definition to show that dw/dz = -1/z^2 .
III.    p. 61:  #8
02/23
Section 2.19-2.20, p. 62:  #1, 2, 5
Section 2.21-2.23, p. 71:  #1, 2, 3, 4(a,c), 8
Additional Problems
I.    Show that f(z) = x^2 + y  ^2 +i(2xy)  is only differentiable along the x-axis.
II.    Given f(z) = x^2-x+y +i(y^2-5y-x) , determine where it is differentiable.
Section 2.15-2.18 Homework due on Wednesday
Section 2.19-2.20, p. 61:  #1, 2, 5
Section 2.21-2.24, p. 70:  #1, 2, 3, 4(a,b), 6
Additional Problems
I.    Show that f(z) = x^2 + y  ^2 +i(2xy)  is only differentiable along the x-axis.
II.    Given f(z) = x^2-x+y +i(y^2-5y-x) , determine where it is differentiable.
Section 2.15-2.18 Homework due on Wednesday
02/25
Section 2.24-2.25, p. 77:  #1, 2, 4, 5
The Exponential Function
Section 3.29, p. 93:  #1, 3, 6, 8, 10
Section 2.25-2.26, p. 76:  #1, 2, 4, 5
The Exponential Function
Section 3.30, p. 89:  #1, 3, 6, 8, 10
02/27
Section 3.30-3.31, p. 97:  #1, 2 Section 3.31-3.33, p. 95:  #1, 2
03/02
Section 3.30-3.31, p. 97:  #[#5 from 9th edition], 9
Additional Problem I, II, & III (on assignment sheet)
More Logarithmic Properties and The Complex Power Function
Section 3.32, p. 100:  #2, 5
Section 3.31-3.33, p. 95:  #1, 2, 5, 10
Additional Problem I, II, & III (on assignment sheet)
More Logarithmic Properties and The Complex Power Function
Section 3.34, p. 100:  #1, 4
03/04
Section 3.33, p. 104:  #1, 2, 3, 4, 6
Section 3.35-3.37, p. 103:  #1, 2, 3, 4, 6
03/06
Section 3.33, p. 104:  #7, 9
Section 3.34, p. 109:  #4(a), 5, 6, 8, 9, 10
Section 3.35-3.37, p. 103:  #7, 9
Section 3.38, p. 107:  #4(a), 5, 6, 8, 9, 10
03/09
Section 3.34, p. 109:  #11, 14, 15, 16
Section 3.35, p. 111:  1, 2, 6, 7[typo on 7b:  RHS = -cosh z], 8(coshz only), 15, 16
Section 3.38, p. 107:  #11, 14, 15, 16
Section 3.39, p. 111:  1, 2, 6, 7[typo on 7b:  RHS = -cosh z], 8(coshz only), 16, 17
03/11
Review for Exam 1
Spring 2013 Exam 1 (Don't do #9b)
Exam 1 Review Sheet
Exam 1 Review Sheet w/ some answers
Exam 1 Formula Sheet

03/13
Exam 1

03/16
Inverse Trigonometric and Inverse Hyperbolic Functions
Section 3.36, p. 114:  #1(sketch values in the complex plane), 2, 3, 5 
Inverse Trigonometric and Inverse Hyperbolic Functions
Section 3.40, p. 114:  #1(sketch values in the complex plane), 2, 3, 5 
03/18
Additional Problem given at the end of Inverse Trigonometric and Inverse Hyperbolic Functions
Section 4.37-4.38, p.121:  #1, 2, 3, 4
Additional Problem given at the end of Inverse Trigonometric and Inverse Hyperbolic Functions
Section 4.41-4.42, p.119:  #1, 2(b,c,d), 3, 4
03/20
Review of Integration
Homework from Calculus Book (Stewart 6th ed.) Section 17.2, p. 1079:  #1, 5, 7, 11, 15 [Copies handed out in class]
(same)

Spring Break !

03/31
Contour Integrals -- Have done for Wednesday
Section 4.40-4.42, p. 135:  #1, 2, 3, 4, 6, 7
Contour Integrals -- Have done for Wednesday
Section 4.44-4.46, p. 132:  #1, 2, 3, 4, 6, 7
04/01
Section 4.40-4.42, p. 135:  #5, 10
Section 4.48-4.49, p. 160:  #1
Section 4.44-4.46, p. 132:  #5, 13
Section 4.52-4.53, p. 159:  #1
04/03
Easter Break -- No Class!

04/06
More on Antiderivatives, Independence of Path, and Cauchy-Goursat Theorem, Part I
Section 4.44-4.45, p. 149:  #1, 2, 3
More on Antiderivatives, Independence of Path, and Cauchy-Goursat Theorem, Part I
Section 4.48-4.49, p. 147:  #1, 2, 3
04/08
Quiz 2
Section 4.44-4.45, p. 149:  #4, 5
Quiz 2
Section 4.48-4.49, p. 147:  #4, 5
04/10
More on Antiderivatives, Independence of Path, and Cauchy-Goursat Theorem, Part II
Section 4.46-4.49, p. 160:  #2, 3, 5, 6
More on Antiderivatives, Independence of Path, and Cauchy-Goursat Theorem, Part II
Section 4.50-4.53, p. 159:  #2, 3, 5, 6
04/13
Section 4.43, p. 140:  #1, 2, 5
04/06-04/10 Homework due on Wednesday
Section 4.47, p. 138:  #1b, 2, 5
04/06-04/10 Homework due on Wednesday
04/15
Extension of the Cauchy Integral Formula
Section 4.50-4.52:  #1-5 (all), 7
Extension of the Cauchy Integral Formula
Section 4.54-4.57, p. 170:  #1-5(all), 7
04/17
Section 5.55-56, p. 188:  #4, 6-8(Use theorems for real-valued series)
Section 5.60-61, p. 185:  #4, 6-8(Use theorems for real-valued series)
04/20
Section 5.55-56, p. 188:  #4
Geometric Series Additional Homework
Section 5.60-61, p. 185:  #4
Geometric Series Additional Homework
04/22
Section 5.57-5.59, p. 195:  #1, 2, 3, 8
Proof of Taylor's Theorem
Section 5.62-5.65, p. 195:  #1, 2, 3, 4
Proof of Taylor's Theorem
04/24
Exam 2 Review Sheet
Exam 2 Review Sheet w/ some answers
Exam 2 Formula Sheet

04/27
Exam 2

04/29
Proof of Taylor's Theorem
Section 5.60-5.62, p. 205:  #1, 2[Hint:  e^z = e^(z+1-1)], 3
Proof of Taylor's Theorem
Section 5.66-5.68, p. 205:  #1, 2, & #2 from 8th edition [Hint:  e^z = e^(z+1-1)]
05/01
Example:  Laurent Series Expansion
Section 5.60-62,  p. 205:  #4, 6, 7(1<|z| < infinity only), 8
Example:  Laurent Series Expansion
Section 5.66-69, p. 205:  #4, 6, 3, 7
05/04
Section 6.72, p. 243:  #1, 2, 3 
Section 6.79, p. 242:  #1, 2, 3
05/06
Section 6.71, p. 239:  #1(a-c), 2
Section 6.74, p. 248:  #1, 2, 3, 4, 5
Section 6.77, p. 237:  #1(a-c), 2
Section 6.81, p. 246:  #1(b,c,d), 2, 4, 5, 6
05/08
Section 6.76, p. 255:  #1(a), 2, 3, 4
Finish Improper Integrals (Calculus II Review) for Monday
Section 6.83, p. 253:  #1, 3, 4, 5
Finish Improper Integrals (Calculus II Review) for Monday
05/11
Start Section 7.78-79 -- No New Homework
05/06 Homework due on Wednesday 05/13
Start Section 7.85-86 -- No New Homework
05/06 Homework due on Wednesday 05/13
05/13
Section 7.78-79, p. 267:  #1, 2, 5, 6, 8[See hint]
Examples:  Evaluation of Improper Integrals
Section 7.85-86, p. 264:  #1, 2, 6, 7, 9[See hint]
Examples:  Evaluation of Improper Integrals
05/15



Click link for Finals Week Schedule and Office Hours
05/18
Monday Reading Day
Office Hours  1:00-2:00pm
05/19
Tuesday
Office Hours 12:00-1:00pm
05/20
Wednesday
Office Hours 10:00-11:00am
Optional Review Session 3:30-4:30pm
05/21
Thursday
Office Hours 3:30-4:30pm
05/22
Friday
Comprehensive Final Exam 10:30-12:30

Old Assignments/Quizzes/Exams Spring 2013

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