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Problem A.5. Let D be a region in the complex plane. (a) State Green's theorem in...
7. Let f:D + C be a complex variable function, write f(x) = u(x, y) +iv(x,y)...
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,...
Problem 1 Consider the composition f(w(z)) of two complex valued functions of a complex variable, f(w)...
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...
Problem 6 Use Green's Theorem to prove that: Sl, da di | dr dy = 5/5...
Problem 6 Use Green's Theorem to prove that: Sl, da di | dr dy = 5/5 184.90) dudo, where is the region in the xy-plane that corresponds to the region in the uv-plane under the transformation given by x = g(u, v) and y = h(u, v).
Problem 6 (6 points) Let f(x) = u(x, y) + iv(x, y) be a analytic function...
Problem 6 (6 points) Let f(x) = u(x, y) + iv(x, y) be a analytic function on D and extends continuously to ad. Prove that the component function u(x, y) must attain its minimum value on aD unless u(x,y) is a constant function. (Hint: Consider the modulus of analytic function g(z) = ef(x), and apply the result in problem 5)
7. Use Green's Theorem to find Jc F.nds, where C is the boundary of the region bounded by y = 4-x2 and y = 0, oriented counter-clockwise and F(x,y) = (y,-3z). what about if F(r, y) (2,3)? x2...
7. Use Green's Theorem to find Jc F.nds, where C is the boundary of the region bounded by y = 4-x2 and y = 0, oriented counter-clockwise and F(x,y) = (y,-3z). what about if F(r, y) (2,3)? x2 + y2 that lies inside x2 + y2-1. Find the surface area of this 8. Consider the part of z surface. 9. Use Green's Theorem to find Find J F Tds, where F(x, y) (ry,e"), and C consists of the line segment...
EXERCISES EXERCISE 6.4. State and prove a generalization of Green's theorem (on age 91) that applies to an arbitrary regular region of R2 Ga punctured plane C1 C2 FIGURE 6.8. The proof of Cor...
EXERCISES EXERCISE 6.4. State and prove a generalization of Green's theorem (on age 91) that applies to an arbitrary regular region of R2 Ga punctured plane C1 C2 FIGURE 6.8. The proof of Corollary 6.12
EXERCISES EXERCISE 6.4. State and prove a generalization of Green's theorem (on age 91) that applies to an arbitrary regular region of R2 Ga punctured plane C1 C2 FIGURE 6.8. The proof of Corollary 6.12
Prove Cauchy's Integral Theorem for k-connected Jordan domains: Let I be a k-connected Jordan domain and...
Prove Cauchy's Integral Theorem for k-connected Jordan domains: Let I be a k-connected Jordan domain and f(2) be analytic in some domain containing 12. Then, Son f(z)dz = 0. Hint: Use the Deformation Principle.
2. EXTRA CREDIT OPTION: GREEN'S THEOREM Fix θ > 0, Consider the region A bounded by the straight ...
2. EXTRA CREDIT OPTION: GREEN'S THEOREM Fix θ > 0, Consider the region A bounded by the straight line segment from (0,0) to (1,0), the portion of the hyperbola parametrized by r(t) (cosh(t), sinh(t)) for 0 t 0, and the straight line segment from P-(cosh(9), sinh(9) back to the origin. Using the vector field F-1/2(-y,z) and Green's Theorem, find the area of A in terms of θ. Show all work in an organized, well-written manner for full credit.
2. EXTRA...
Problem 8. Let f(z) = u(x, y) iv(x, y) be an entire function with real and...
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
[3](4 pts) Let f(x) = u(x, y) + iv(x,y) be differentiable for all z = x...
[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.
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,...
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...
Problem 6 Use Green's Theorem to prove that: Sl, da di | dr dy = 5/5 184.90) dudo, where is the region in the xy-plane that corresponds to the region in the uv-plane under the transformation given by x = g(u, v) and y = h(u, v).
Problem 6 (6 points) Let f(x) = u(x, y) + iv(x, y) be a analytic function on D and extends continuously to ad. Prove that the component function u(x, y) must attain its minimum value on aD unless u(x,y) is a constant function. (Hint: Consider the modulus of analytic function g(z) = ef(x), and apply the result in problem 5)
7. Use Green's Theorem to find Jc F.nds, where C is the boundary of the region bounded by y = 4-x2 and y = 0, oriented counter-clockwise and F(x,y) = (y,-3z). what about if F(r, y) (2,3)? x2 + y2 that lies inside x2 + y2-1. Find the surface area of this 8. Consider the part of z surface. 9. Use Green's Theorem to find Find J F Tds, where F(x, y) (ry,e"), and C consists of the line segment...
EXERCISES EXERCISE 6.4. State and prove a generalization of Green's theorem (on age 91) that applies to an arbitrary regular region of R2 Ga punctured plane C1 C2 FIGURE 6.8. The proof of Corollary 6.12
EXERCISES EXERCISE 6.4. State and prove a generalization of Green's theorem (on age 91) that applies to an arbitrary regular region of R2 Ga punctured plane C1 C2 FIGURE 6.8. The proof of Corollary 6.12
Prove Cauchy's Integral Theorem for k-connected Jordan domains: Let I be a k-connected Jordan domain and f(2) be analytic in some domain containing 12. Then, Son f(z)dz = 0. Hint: Use the Deformation Principle.
2. EXTRA CREDIT OPTION: GREEN'S THEOREM Fix θ > 0, Consider the region A bounded by the straight line segment from (0,0) to (1,0), the portion of the hyperbola parametrized by r(t) (cosh(t), sinh(t)) for 0 t 0, and the straight line segment from P-(cosh(9), sinh(9) back to the origin. Using the vector field F-1/2(-y,z) and Green's Theorem, find the area of A in terms of θ. Show all work in an organized, well-written manner for full credit.
2. EXTRA...
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
[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.
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