7. Let f:D + C be a complex variable function, write f(x) = u(x, y) +iv(x,y) where z = x +iy. (a) (9 points) (1) Present an equivalent characterization(with u and v involved) for f being analytic on D. (Just write down the theorem, you don't need to prove it.) (2) Let f(z) = (4.x2 + 5x – 4y2 + 3) +i(8xy + 5y – 1). Show that f is an entrie function. (3) For the same f as above,...
Complex affine transformation in plane s w = az+β, where:= x+iy, w = x, + iy'. For complex numbers α = αι + ia2, β = β1 + 2β2 rewrite this transformation as affine transformation in plane between coordi nates (x, y) and (x', y/). Identify corresponding linear 2x2 transforma- tion matrix A and translation vector t. Show that matrix representa- tion of this affine transformation is
Complex affine transformation in plane s w = az+β, where:= x+iy, w =...
b) Let V be a complex vector space, let (,) be an inner product on V, and let 2, y E V be certain vectors. Assume that (x, y) = 2i and (y, y) = 5. Find (< + iy, iy).
Problem 1 Consider the composition f(w(z)) of two complex valued functions of a complex variable, f(w) and w(z), where z = x+iy and w=u+iv. Assume that both functions have continuous partial derivatives. Show that the chain rule can be written in complex form as of _ of ou , of Oz . . of az " dw dz * dw dz and Z of ou , of ou dw dz* dw ƏZ Show as a consequence that if f(w) is...
[3](4 pts) Let f(x) = u(x, y) + iv(x,y) be differentiable for all z = x + iy. If v(x, y) = x + xy + y2 – x2, for all (x, y), find u(x,y) and express f(x) explicitly in terms of z.
Problem 8. Let f(z) = u(x, y) iv(x, y) be an entire function with real and imaginary parts u(x, y) and v(x, y). Assume that the imaginary part is bounded v(x, y) < M for every z = x+ iy. Prove that f is a constant 1
1. Write f(z) in the form f(x) = u(x, y) +iv(x, y). (a) f(x) = 23+2+1 (b) f(3) = 2,270. Suppose f(z) = x2 - y2 - 2y +i (2x - 2xy), where z = x + iy, and express () in terms of .
Q5. (a) Consider the region in the complex plane defined by: z = x+iy : 1, lul π/3. Draw this region in the z-plane and mark a few points on it of your choice (eg, A, B, C) Now, apply the conformal transformation w-e*. Plot the resulting region and mark the corresponding points (eg., A, B, C.) (b) What is the area (in arbitrary square units) of the figure in the z-plane? What is the area in the w-plane?
(2 points) Here are several points on the complex plane: The red point represents the complex number zı = and the blue point represents the complex number Z2 = The "modulus" of a complex number z = x+iy, written [z], is the distance of that number from the origin: z) = x2 + y2. Find the modulus of zi. |zıl = 61^(1/2) We can also write a complex number z in polar coordinates (r, 6). The angle is sometimes called...
Please show detailed solution Given f(2)=zz – 5z + 7i 1. If z= x +iy u(x,y)= v(x,y)= 2. If z=-11 -6i u(-11,-6) V(-11,-6)= Check #2 values from those of #1