4. (20) φ(a)メ0. Also assume that f has a simple pole at φ(a) with ResC:φ(a)) =...
8. (30) This problem has several parts spread over several pages. Note that you can use the conclusion of a previous part even if you were unable to work that part. Assume throughout that f in analytic and non-zero in BR(20) for some R> 0 so that f has an isolated singularity at zo (a) Show that f has a pole at zo if and only if if zメzo, and g(z) = is analytic at zo. ) show that if...
9. Suppose that f (z) has a simple pole at ao on a closed curve C, but is analytic elsewhere inside and on C except for poles at a finite number of interior points a1,a2,, (a) If the contour C is indented at ao by a circular arc with center at ao, show that the limiting form of the integral of f (x) around the indented contour is as the radius of the indentation tends to zero, regardless of whether...
the above interval. for any 0 for 4.a) Write a third order Taylor approx the solution of the differential equation 1/ = z + y with initial condition y(0) 2 b) Assume y = φ(z) is a solution of the differential equation y terms of the Taylor series of φ(z) at z = zo (ie., the error term should be O(h*)) imation (i.e., an approximation that involves t/") at z Write out the first four , f (z,v).
the above...
Problem 4. (5 points) Suppose f is analytic on and inside a simple closed curve C. Assume f(x) = 0 for z on C. Show f(2)=0 for all z inside C.
Fx 0. Show that =-- dx Fy dy 8. Suppose y is a function of z, F(x, y) = 0, and F,メO. Show that dr--Fr 9. Fid the critical points of f(z, y) if any exist, for (a, y) = ex sin y 10. Calculate the iterated integral: ysin(zy)d dy
Fx 0. Show that =-- dx Fy dy 8. Suppose y is a function of z, F(x, y) = 0, and F,メO. Show that dr--Fr 9. Fid the critical points...
8. (30) This problem has several parts spread over several pages. Note that you can use the conclusion of a previous part even if you were unable to work that part Assume throughout that f in analytic and non-zero in BR(z0) for some R> 0 so that f has an isolated singularity at o (d) Show that if f has an isolated singularity at z0 and g(z) exp(f(z)), then g has a removable singularity at zo if and only if...
11. (8)(a) Suppose that f and g are analytic branches of zt on a domain D such that 0 g D Show that there is a fifth root, wo, of 1 such that f(z)-wog(2) for all E D. I suggest considering h(z) f (z)/g(z) (b) Now suppose that D D C(-,0]. Let f be an analytic branch of zt in D such that f (1) 1. Show that f(z) expLog(2)) for all z ED.
11. (8)(a) Suppose that f and...
Please help with this question. Thank you!
1. We say p (ro. yo, 20) is a regular point for the equation F(x, y,) 0 if the equation either defines as a differentiable function f( for (, y) in a neighborhood of (ro, Vo), or defines y as a differentiable function y-g(, a) for (r, z) in a neighborhood of (ro, 2o), or defines z as a differentiable functionh(x, y) for (x, y) in a neighborhood of (ro.o). a. Suppose p...
Implicit Function Theorem in Two Variables: Let g: R2 → R be a smooth function. Set {(z, y) E R2 | g(z, y) = 0} S Suppose g(a, b)-0 so that (a, b) E S and dg(a, b)メO. Then there exists an open neighborhood of (a, b) say V such that SnV is the image of a smooth parameterized curve. (1) Verify the implicit function theorem using the two examples above. 2) Since dg(a,b) 0, argue that it suffices to...
A. Make a sketch of a vector F- (x,y, z), labeling the appropriate spherical coordinates. In addition, show the unit vectors r, θ, and φ at that point B. Write the vectors ŕ.0, and ф in terms of the unit vectors x, y, and г. Here's the easy way to do this 1. For r, simply use the fact that/r 2. For φ, use the following formula sin θ Explain why the above formula works 3. Compute θ via θ...