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Q1. Let S = {z € C: Im z = 1}. Find the interior points, exterior...
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,...
7. Let D = {z C z 1) denote the closed unit disc centered at the origin. Let f : D → C be a conti...
7. Let D = {z C z 1) denote the closed unit disc centered at the origin. Let f : D → C be a continuous function which is holomorphic on the interior of D. Suppose If(:) 2/(2- 2) and that If (z)1-2 for all z such that 1. Show that f(z is constant.
7. Let D = {z C z 1) denote the closed unit disc centered at the origin. Let f : D → C be a continuous...
Number 6 please S. Let ) be a sequence of continuous real-valued functions that converges uniformly...
Number 6 please
S. Let ) be a sequence of continuous real-valued functions that converges uniformly to a function fon a set ECR. Prove that lim S.(z) =S(x) for every sequence (x.) C Esuch that ,E E 6. Let ECRand let D be a dense subset of E. If .) is a sequence of continuous real-valued functions on E. and if () converges unifomly on D. prove that (.) converges uniformly on E. (Recall that D is dense in E...
(1) Let F denote the inverse square vector field (axr, y, z) F= (Note that ||F...
(1) Let F denote the inverse square vector field (axr, y, z) F= (Note that ||F 1/r2.) The domain of F is R3\{(0, 0, 0)} where r = the chain rule (a) Verify that Hint: first show that then use (b) Show that div(F 0. (c) Suppose that S is a closed surface in R3 that does not enclose the origin. Show that the flux of F through S is zero. Hint: since the interior of S does not contain...
Let X be a metric space and let E C X. The boundary aE of E...
Let X be a metric space and let E C X. The boundary aE of E is defined by E EnE (a) Prove that DE = E\ E°. Here Eo is the set of all interior points of E; E° is called the interior of E (b) Prove that E is open if and only if EnaE Ø. (c) Prove that E is closed if and only if aE C E (d) For X R find Q (e) For X...
(1) Assume the axioms of metric geometry. Let A, B, C, D be distinct collinear points....
(1) Assume the axioms of metric geometry. Let A, B, C, D be
distinct collinear points. Let f : l → R be a coordinate function
for the line l that crosses all of A, B, C, D. Suppose f(A) <
f(B) < f(C) < f(D). Prove that AD = AB ∪ BC ∪ CD. (2) Assume
the axioms of metric geometry. Let A, B, C, D be distinct collinear
points. Suppose A ∗ B ∗ C and B ∗...
Let F(x, y,z) = < x + y2,y + z2,z + x2 >, let S be a surface with boundary C. C is the triangle with vertices...
Let F(x, y,z) = < x + y2,y + z2,z + x2 >, let S be a surface with boundary C. C is the triangle with vertices (1,0,0), (0,1,0), (0,0,1). 8. a. Evaluate F dr curl F ds b.
Let F(x, y,z) = , let S be a surface with boundary C. C is the triangle with vertices (1,0,0), (0,1,0), (0,0,1). 8. a. Evaluate F dr curl F ds b.
1.29. Let G be the set of points zeC satisfying either z is real and -2...
1.29. Let G be the set of points zeC satisfying either z is real and -2 <z<-1, or lz< 1, or z 1 or z = 2. C (a) Sketch the set G, being careful to indicate exactly the points that are in G. (b) Determine the interior points of G ELEMENTARY TOPOLOGY OF THE PLANE 2I (c) Determine the boundary points of G. (d) Determine the isolated points of G. 120 TL
1.29. Let G be the set of...
(c) Let F be the vector field on R given by F(x, y, z) = (2x...
(c) Let F be the vector field on R given by F(x, y, z) = (2x +3y, z, 3y + z). (i) Calculate the divergence of F and the curl of F (ii) Let V be the region in IR enclosed by the plane I +2y +z S denote the closed surface that is the boundary of this region V. Sketch a picture of V and S. Then, using the Divergence Theorem, or otherwise, calculate 3 and the XY, YZ...
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,...
7. Let D = {z C z 1) denote the closed unit disc centered at the origin. Let f : D → C be a continuous function which is holomorphic on the interior of D. Suppose If(:) 2/(2- 2) and that If (z)1-2 for all z such that 1. Show that f(z is constant.
7. Let D = {z C z 1) denote the closed unit disc centered at the origin. Let f : D → C be a continuous...
Number 6 please
S. Let ) be a sequence of continuous real-valued functions that converges uniformly to a function fon a set ECR. Prove that lim S.(z) =S(x) for every sequence (x.) C Esuch that ,E E 6. Let ECRand let D be a dense subset of E. If .) is a sequence of continuous real-valued functions on E. and if () converges unifomly on D. prove that (.) converges uniformly on E. (Recall that D is dense in E...
(1) Let F denote the inverse square vector field (axr, y, z) F= (Note that ||F 1/r2.) The domain of F is R3\{(0, 0, 0)} where r = the chain rule (a) Verify that Hint: first show that then use (b) Show that div(F 0. (c) Suppose that S is a closed surface in R3 that does not enclose the origin. Show that the flux of F through S is zero. Hint: since the interior of S does not contain...
Let X be a metric space and let E C X. The boundary aE of E is defined by E EnE (a) Prove that DE = E\ E°. Here Eo is the set of all interior points of E; E° is called the interior of E (b) Prove that E is open if and only if EnaE Ø. (c) Prove that E is closed if and only if aE C E (d) For X R find Q (e) For X...
(1) Assume the axioms of metric geometry. Let A, B, C, D be
distinct collinear points. Let f : l → R be a coordinate function
for the line l that crosses all of A, B, C, D. Suppose f(A) <
f(B) < f(C) < f(D). Prove that AD = AB ∪ BC ∪ CD. (2) Assume
the axioms of metric geometry. Let A, B, C, D be distinct collinear
points. Suppose A ∗ B ∗ C and B ∗...
Let F(x, y,z) = < x + y2,y + z2,z + x2 >, let S be a surface with boundary C. C is the triangle with vertices (1,0,0), (0,1,0), (0,0,1). 8. a. Evaluate F dr curl F ds b.
Let F(x, y,z) = , let S be a surface with boundary C. C is the triangle with vertices (1,0,0), (0,1,0), (0,0,1). 8. a. Evaluate F dr curl F ds b.
1.29. Let G be the set of points zeC satisfying either z is real and -2 <z<-1, or lz< 1, or z 1 or z = 2. C (a) Sketch the set G, being careful to indicate exactly the points that are in G. (b) Determine the interior points of G ELEMENTARY TOPOLOGY OF THE PLANE 2I (c) Determine the boundary points of G. (d) Determine the isolated points of G. 120 TL
1.29. Let G be the set of...
(c) Let F be the vector field on R given by F(x, y, z) = (2x +3y, z, 3y + z). (i) Calculate the divergence of F and the curl of F (ii) Let V be the region in IR enclosed by the plane I +2y +z S denote the closed surface that is the boundary of this region V. Sketch a picture of V and S. Then, using the Divergence Theorem, or otherwise, calculate 3 and the XY, YZ...
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