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Note that these are due dates and not date the problems are assigned. These dates are subject to change, you will get email when they do change. Only the assignments in red are for the current semester; the assignments in black are from last summer (roughly).

due date Section(s) and Problems Notes
Mod Aug 27 Welcome to Fourier Analysis and PDEs  
Wed Aug 29    
Fri Aug 31 (Diagnostic) Test 0 Counts as Quiz 0
Mon Sep 3 Labor day no class  
Wed Sep 5 HW#01 §11.3 2, 4, 8 §11.1 15, 19, 23 Old HW#01 §11.1 3, 9, 13, 22
Fri Sep 7 Quiz 1  
Mon Sep 10 HW#02 §11.1 3 Plot Problem #1 §11.2 6, 13, 17 §11.3 16 Old HW#02 §11.2, 3, 17, §11.3, 2, 13, 23 §11.4 9, 10
Wed Sep 12    
Fri Sep 14 Quiz 2  
Mon Sep 17 HW#03 Plot Problem #2 §11.3 17, 25 §11.4 11, 12 §11.6 14 Old HW#03 Plot B1 §11.5 11, 17, §11.6 5, 14, §12.1 14, 18, 25
Wed Sep 19    
Fri Sep 21 Quiz 3  
Mon Sep 24 HW#04 Plot Problem #3 §11.6 For f(x) =exp(|x|) (-pi < x < pi) find the best trig poly approximation for N=5 (based on #6); §11.review 24; §12.1 8, 12, 16, And show u =1/sqrt(x^2+y^2+z^2) satisfies (6), u=ln(x^2+y^2) satisfies (3) and determine if u=1/sqrt(x^2+y^2) satisfies (3) (based on #26c); Old HW#04 Plot B2 §12.1 4, 11, 12
Wed Sep 26 Review  
Fri Sep 28 Test 1  
Mon Oct 1 HW#05 §11.5 6, 10, §12.1 5, 9, 11, §12.review 20 Old HW#05 §12.3 2, 3, 9 Do both Fourier coefficients and plot the solutions for at least t=0,1/4,1/2,3/4,1
Wed Oct 3    
Fri Oct 5 Quiz 4  
Mon Oct 8 HW#06 §12.3 2, 3, 9 (Do both Fourier coefficients and plot the solution for at least t=0, 1/4, 1/2, 3/4 and 1) [Check out geogebra widget] Extra2 problems #1, #6 and #11 Old HW#06 §12.3 12, 16(use solution in #15) Extra problems #1 and #6 §12.4 2, 14
Wed Oct 10    
Fri Oct 12 Quiz 5  
Mon Oct 15 HW#07 §12.3 12, and repeat problem 2 but with f(x) = sin(pi*x)+sin(3*pi*x), Extra2 problems #5 and #10 §12.4 17, 20 (all 4 steps like the examples in extra2.pdf) Old HW#07 §12.4 18 Extra problem #5 12.5 6, 11, 14, 24, 29, 32
Wed Oct 17    
Fri Oct 19 Quiz 6  
Mon Oct 22 HW#08 §12.4 2 and (all 4 steps) for 18, §12.5 6, 12, 16, 24 (hint for 24: substract off the steady state solution) Old HW#08 §11.7 3, 5, 7, 10, 14, 16
Wed Oct 24 Review  
Fri Oct 26 Test 2  
Mon Oct 29 HW#09 §12.5 7, 14, 27 §11.7 2, 3, and show that if u satisfies the heat equation u_t = u_xx and v = u(x,t)exp(-t) then v satisfies v_t = v_xx - v, the heat equation with convection. (compare §12.5 #25 and #26) Old HW#09 §11.8, 1, 6, 11, 17 §12.6 3 Plot B3
Wed Oct 31    
Fri Nov 2 Quiz 7  
Mon Nov 5 HW#10 §11.7 8, 17 Plot problem #4 §12.5 29, 32 §12.6 Find the Fourier Integral for f(x) in #6 and use it to solve the heat equation problem in #6. Old HW#10 §11.9 6, 10 and show that the fourier transform of exp(iax)f(x) is f-hat(w-a) §12.6 Solve 1& 6 by Fourier transforms and convolutions Prob FT1: Solve u_x + u_t = 0; u(x,0) = f(x) by Fourier Transforms Prob FT2: Solve u_x + u_t + u = 0; u(x,0) = f(x) by Fourier Transforms ft.pdf more on Fourier Transforms
Wed Nov 7    
Fri Nov 9 Quiz 8  
Mon Nov 12 Veteran's Day No class  
Wed Nov 14 HW#11 §11.8 11, 12 §11.9 6, 10 §12.6 Solve #2 using the Fourier transform like Example 2. And finally FT1: Solve t^2 u_x + 5u_t = 0; u(x,0) = f(x) by Fourier Transforms. (Hint: ft.pdf)
Old HW#11 §12.8 12, 20 §12.9 7, 10 Laplacians Probs #1 and #3
Fri Nov 16    
Mon Nov 19    
Wed Nov 21 Quiz 9  
Fri Nov 23 Turkey Plus One, No class  
Mon Nov 26 HW#12 §12.8 12, 20, §12.9 7, 10 Laplacian Probs #1 and #3 Old HW#12 §12.9 5 12.10 5, 13, 14, 16 §12.11 5
Wed Nov 28 Review  
Fri Nov 30 Test 3  
Mon Dec 3   The was no old HW#13 (it was a repeat of hw#12 )
Wed Dec 5 HW#13 §12.9 6d (note the normal derivative is just partial/partial r) 12.10 5 (just for u_n), 13, 14, 15 §12.11 5  
Fri Dec 7   Last Day of classes
Thurs Dec 13 Final 7:30am-9:30am




Steve Bellenot 2007-11-21