![(3) Let X = R with the standard topology and I = [0, 1]. Let F, be the subset of I formed by removing the open middle third (](http://img.homeworklib.com/questions/02f478e0-718d-11eb-ba8f-e9c5381f81d5.png?x-oss-process=image/resize,w_560)
Let X = ℝ with the standard topology and I = [0, 1]. Let F1 be the subset of I formed by removing the open middle third (1/3, 2/3). Then F1 = [0, 1/3]⋃[2/3, 1] Next, let F2 be the subset of F1 formed by removing the open middle thirds (1/9, 2/9) and (7/9, 8/9) of the two components of F1. Then F2 = [0, 1/9] ⋃[2/9, 1/3] ⋃[2/3, 7/9] ⋃[8/9, 1] Continuing this manner, let Fn+1be the subset of Fn obtained by removing open middle third of each of the components of Fn. Define � = �! ! !!! (a). Draw Fn for couple of different values of n. (b). Find the total length of the open intervals that were removed when forming C. (c). Show that C is compact.
Homework Answers
5. Consider the sample space Ω = [0, 1]. Let P be a probability function such...
5. Consider the sample space Ω = [0, 1]. Let P be a probability function such that for any interval fa, b, P(a, b-b-a. In other words, probabilty of any interval is its length Let us start with Co [0, 1, and at nth step, we define Cn by removing an interval of length 1/3 from the middle of each interval in Cn-1 For example, C1-[0, 1/3 u [2/3,1], C2-[0,1/9)U[2/9,1/3 U [2/3,7/9 U[8/9, 1] and so on. Here is a...
(1) Let X = {0}U[2,3], and give X the topology Tx = {0,{0}, [2, 3], X}....
(1) Let X = {0}U[2,3], and give X the topology Tx = {0,{0}, [2, 3], X}. (a) (10 points) Is X To? Briefly justify your answer. (b) (10 points) Is X Hausdorff? Briefly justify your answer. (c) (10 points) Is X Tz? Briefly justify your answer. (d) (10 points) Is D = ({0} Ⓡ {0}) U ([2, 3] x [2, 3]) a closed subset of X x X with the product topology? Briefly justify your answer.
Consider the sample space Ω-10, 1]. Let P be a probability function such that for any...
Consider the sample space Ω-10, 1]. Let P be a probability function such that for any interval [a, b], P([a, b) b- a. In other words, probabilty of any interval is its length. Let us start with Co 10, 1], and at nth step, we define C, by removing an interval of length 1/3° from the middle of each interval in Cn-1. For example, G = [0, 1/3ju [2/3, 11, c2 [0, 1/9] U [2/9, 1/3] U [2/3,7/9] U [8/9,...
2. (a) Let B = {f1, f2, f3} be a subset of P2 where fi(x) =...
2. (a) Let B = {f1, f2, f3} be a subset of P2 where fi(x) = x² – 3, f2(x) = x2 – 2x and f3(x) = x. Show that B is a basis of P2. (b) Determine whether or not the following sets are subspaces of F. (i) X = {f € F | f(x) = a(x + cos x), a € R}. (ii) Y = {f EF | f(x) = ax + sin x, a € R}. (c)...
Topology 3. Either prove or disprove each of the following statements: (a) If d and p...
Topology
3. Either prove or disprove each of the following statements: (a) If d and p map (X, d) X, then the identity topologically equivalent metrics (X, p) and its inverse are both continuous are two on (b) Any totally bounded metric space is compact. (c) The open interval (-r/2, n/2) is homeomorphic to R (d) If X and Y are homeomorphic metric spaces, then X is complete if and only if Y is complete (e) Let X and Y...
Exercise 6. Let En be the sequence of Fibonacci numbers: Fo = 0, F1 = 1,...
Exercise 6. Let En be the sequence of Fibonacci numbers: Fo = 0, F1 = 1, and Fn+2 = Fn+1 + Fn for all natural numbers n. For example, F2 = Fi + Fo=1+0=1 and F3 = F2 + F1 = 1+1 = 2. Prove that Fn = Fla" – BM) for all natural numbers n, where 1 + a=1+ V5 B-1-15 =- 2 Hint: Use strong induction. Notice that a +1 = a and +1 = B2!
Topology C O, 1 and be the supremum norm (a) Prove that (X || |) is a Banach space. You can assume that (X, | |) is a n...
Topology
C O, 1 and be the supremum norm (a) Prove that (X || |) is a Banach space. You can assume that (X, | |) is a normed vector space (over R) |f|0supE0.1 \5(x)|.| 4. Let X C (b) Show that || |o0 that the parallelogram identity fails.] on X is not induced by any inner product. Hint: Check for all E[0, 1]. Show that {gn}n>1 (0, 1] BI= {gE X |9||<1} is a compact (c) For every 2...
11 1 11 3. Let f1, f2, ..., fn are differentiable functions from V HR with...
11 1 11 3. Let f1, f2, ..., fn are differentiable functions from V HR with V a Hilbert space. Define F :V HRN by F(a) = [fi(x)] f2(2x) I:T, V x EV, [fn (2)] where R” is endowed with the standard inner product. Prove that T(V fi(2), y) | |(Vf2(2), y) | DF(x)(y) = V rEV. Liv fn(x), y)]
Let R be an interval (open, closed, neither are all fine) and let f: I-> R be a continuous strictly increasing funct...
Let R be an interval (open, closed, neither are all fine) and let f: I-> R be a continuous strictly increasing function. Do the following: (1) Show that the inverse function f -1 exists. (2) Prove that f is an open map (in the relative topology on I) (3) Prove that f1 is continuous
Let R be an interval (open, closed, neither are all fine) and let f: I-> R be a continuous strictly increasing function. Do the following: (1)...
C++ Fibonacci Complete ComputeFibonacci() to return FN, where F0 is 0, F1 is 1, F2 is...
C++ Fibonacci Complete ComputeFibonacci() to return FN, where F0 is 0, F1 is 1, F2 is 1, F3 is 2, F4 is 3, and continuing: FN is FN-1 + FN-2. Hint: Base cases are N == 0 and N == 1. #include <iostream> using namespace std; int ComputeFibonacci(int N) { cout << "FIXME: Complete this function." << endl; cout << "Currently just returns 0." << endl; return 0; } int main() { int N = 4; // F_N, starts at...
5. Consider the sample space Ω = [0, 1]. Let P be a probability function such that for any interval fa, b, P(a, b-b-a. In other words, probabilty of any interval is its length Let us start with Co [0, 1, and at nth step, we define Cn by removing an interval of length 1/3 from the middle of each interval in Cn-1 For example, C1-[0, 1/3 u [2/3,1], C2-[0,1/9)U[2/9,1/3 U [2/3,7/9 U[8/9, 1] and so on. Here is a...
(1) Let X = {0}U[2,3], and give X the topology Tx = {0,{0}, [2, 3], X}. (a) (10 points) Is X To? Briefly justify your answer. (b) (10 points) Is X Hausdorff? Briefly justify your answer. (c) (10 points) Is X Tz? Briefly justify your answer. (d) (10 points) Is D = ({0} Ⓡ {0}) U ([2, 3] x [2, 3]) a closed subset of X x X with the product topology? Briefly justify your answer.
Consider the sample space Ω-10, 1]. Let P be a probability function such that for any interval [a, b], P([a, b) b- a. In other words, probabilty of any interval is its length. Let us start with Co 10, 1], and at nth step, we define C, by removing an interval of length 1/3° from the middle of each interval in Cn-1. For example, G = [0, 1/3ju [2/3, 11, c2 [0, 1/9] U [2/9, 1/3] U [2/3,7/9] U [8/9,...
2. (a) Let B = {f1, f2, f3} be a subset of P2 where fi(x) = x² – 3, f2(x) = x2 – 2x and f3(x) = x. Show that B is a basis of P2. (b) Determine whether or not the following sets are subspaces of F. (i) X = {f € F | f(x) = a(x + cos x), a € R}. (ii) Y = {f EF | f(x) = ax + sin x, a € R}. (c)...
Topology
3. Either prove or disprove each of the following statements: (a) If d and p map (X, d) X, then the identity topologically equivalent metrics (X, p) and its inverse are both continuous are two on (b) Any totally bounded metric space is compact. (c) The open interval (-r/2, n/2) is homeomorphic to R (d) If X and Y are homeomorphic metric spaces, then X is complete if and only if Y is complete (e) Let X and Y...
Exercise 6. Let En be the sequence of Fibonacci numbers: Fo = 0, F1 = 1, and Fn+2 = Fn+1 + Fn for all natural numbers n. For example, F2 = Fi + Fo=1+0=1 and F3 = F2 + F1 = 1+1 = 2. Prove that Fn = Fla" – BM) for all natural numbers n, where 1 + a=1+ V5 B-1-15 =- 2 Hint: Use strong induction. Notice that a +1 = a and +1 = B2!
Topology
C O, 1 and be the supremum norm (a) Prove that (X || |) is a Banach space. You can assume that (X, | |) is a normed vector space (over R) |f|0supE0.1 \5(x)|.| 4. Let X C (b) Show that || |o0 that the parallelogram identity fails.] on X is not induced by any inner product. Hint: Check for all E[0, 1]. Show that {gn}n>1 (0, 1] BI= {gE X |9||<1} is a compact (c) For every 2...
11 1 11 3. Let f1, f2, ..., fn are differentiable functions from V HR with V a Hilbert space. Define F :V HRN by F(a) = [fi(x)] f2(2x) I:T, V x EV, [fn (2)] where R” is endowed with the standard inner product. Prove that T(V fi(2), y) | |(Vf2(2), y) | DF(x)(y) = V rEV. Liv fn(x), y)]
Let R be an interval (open, closed, neither are all fine) and let f: I-> R be a continuous strictly increasing function. Do the following: (1) Show that the inverse function f -1 exists. (2) Prove that f is an open map (in the relative topology on I) (3) Prove that f1 is continuous
Let R be an interval (open, closed, neither are all fine) and let f: I-> R be a continuous strictly increasing function. Do the following: (1)...
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