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Let E C R such that its Lebesgue (E2) 0, where E2 x2: xe E} Hint: First consider the case when E is bounded *(E) = 0...
equivalent 4. Let E C R. Prove that the following statements are (a) E is Lebesgue measurable (b) Given e> 0, the...
equivalent 4. Let E C R. Prove that the following statements are (a) E is Lebesgue measurable (b) Given e> 0, there exist m* denotes the Lebesgue measure of a set (c) Given e 0, there exist a closed set F such that F C E and m* (E- F) < E. (d) There exists a set G (a countable intersection of open sets) such that E C G and m* (G - E) 0 (e) There exists a set...
equivalent 4. Let E C R. Prove that the following statements are (a) E is Lebesgue measurable (b) Given e> 0, the...
equivalent 4. Let E C R. Prove that the following statements are (a) E is Lebesgue measurable (b) Given e> 0, there exist m* denotes the Lebesgue measure of a set (c) Given e 0, there exist a closed set F such that F C E and m* (E- F) < E. (d) There exists a set G (a countable intersection of open sets) such that E C G and m* (G - E) 0 (e) There exists a set...
equivalent 4. Let E C R. Prove that the following statements are (a) E is Lebesgue measurable (b) Given e> 0, the...
equivalent 4. Let E C R. Prove that the following statements are (a) E is Lebesgue measurable (b) Given e> 0, there exist m* denotes the Lebesgue measure of a set (c) Given e 0, there exist a closed set F such that F C E and m* (E- F) < E. (d) There exists a set G (a countable intersection of open sets) such that E C G and m* (G - E) 0 (e) There exists a set...
3. Let E E Lm* (Lebesgue measurable set). Prove that there exist a set G (a countable intersection of open sets), and a...
3. Let E E Lm* (Lebesgue measurable set). Prove that there exist a set G (a countable intersection of open sets), and a set F (a countable union of closed sets) such that F CE C G and m* (F) the Lebesgue measure of a set Hint: The Lebesgue measure can be calculated in terms of open and closed sets m* (E) m* (G), where m* denotes
3. Let E E Lm* (Lebesgue measurable set). Prove that there exist a...
Problem 15 (m* (I)) of an interval I is its length (e(I)). Prove that the Lebesgue...
Problem 15 (m* (I)) of an interval I is its length (e(I)). Prove that the Lebesgue outer measure (In): EC Ia (In) collection of open interva inf Proof Recall that the Lebesgue outer measure m' (I) n To prove that the Lebesgue outer measure is equivalent to the length of the interval, we will first 167 7.4. Measure Theory Problem Set 4: Outer Measure consider an unbounded interval I. Note that an unbounded interval cannot be covered by a fi-...
7. (10%) Let f: [0,1] R be defined by _x xe[0,1]n f(x) 0 otherwise Is fe L[0,1]? If yes, find its Lebesgue integral...
7. (10%) Let f: [0,1] R be defined by _x xe[0,1]n f(x) 0 otherwise Is fe L[0,1]? If yes, find its Lebesgue integral. i) Is feR[O,1] ? If yes, find its Riemann integral. ii) ii) What is lim || |, ?
7. (10%) Let f: [0,1] R be defined by _x xe[0,1]n f(x) 0 otherwise Is fe L[0,1]? If yes, find its Lebesgue integral. i) Is feR[O,1] ? If yes, find its Riemann integral. ii) ii) What is lim ||...
Please prove Problem 11 & 12 carefully (note that m represents Lebesgue measure & m* represents Lebesgue outer measure): 11. Let E c Rn be an arbitrary subset. Show that for all є > 0 ther...
Please prove Problem 11 & 12 carefully
(note that m represents Lebesgue measure & m* represents
Lebesgue outer measure):
11. Let E c Rn be an arbitrary subset. Show that for all є > 0 there exists an open set G containing E with m(G) m"(E) +e. 12. Let E C Rn be a measurable subset. Show that for all € > 0 there exists an open set G containing Ewith m (G\ E) < є.
11. Let E c...
Exercise 5.3.2. [Used in Exercise 5.5.6.] Let [a,b] C R be a non-degenerate closed bounded interv...
Exercise 5.3.2. [Used in Exercise 5.5.6.] Let [a,b] C R be a non-degenerate closed bounded interval, and let f: la,b] R be a function. Suppose that f is integrable Prove that if If(x)l S M for all xe la, b], for some M E R, then Jx)ds M(b-a)
Exercise 5.3.2. [Used in Exercise 5.5.6.] Let [a,b] C R be a non-degenerate closed bounded interval, and let f: la,b] R be a function. Suppose that f is integrable Prove that if...
31 (a) If fis integrable, prove that fa is integrable. Hint: Given e>0, let h and...
31 (a) If fis integrable, prove that fa is integrable. Hint: Given e>0, let h and k be step functions such that h f k and j (k-h) < ε/M, where M is the maximum value of Ik(x) +h(x)]. Then prove that h and k2 are step functions with h' srsk (we may assume that OShSSk since f is integrable if and only if I is-why?), and that I (k2 - h2) <e. Then apply Theorem 3.3. (b) If fand...
5.1 (Double encryption). Let E = (E,D) be a cipher. Consider the cipher E2 = (E2,...
5.1 (Double encryption). Let E = (E,D) be a cipher. Consider the cipher E2 = (E2, D2), where E2(k,m) = E(k, E(k,m)). One would expect that if encrypting a message once with E is secure then encrypting it twice as in E2 should be no less secure. However, that is not always true. (a) Show that there is a semantically secure cipher E such that E2 is not semantically secure. (b) Prove that for every CPA secure ciphers E, the...
equivalent 4. Let E C R. Prove that the following statements are (a) E is Lebesgue measurable (b) Given e> 0, there exist m* denotes the Lebesgue measure of a set (c) Given e 0, there exist a closed set F such that F C E and m* (E- F) < E. (d) There exists a set G (a countable intersection of open sets) such that E C G and m* (G - E) 0 (e) There exists a set...
equivalent 4. Let E C R. Prove that the following statements are (a) E is Lebesgue measurable (b) Given e> 0, there exist m* denotes the Lebesgue measure of a set (c) Given e 0, there exist a closed set F such that F C E and m* (E- F) < E. (d) There exists a set G (a countable intersection of open sets) such that E C G and m* (G - E) 0 (e) There exists a set...
equivalent 4. Let E C R. Prove that the following statements are (a) E is Lebesgue measurable (b) Given e> 0, there exist m* denotes the Lebesgue measure of a set (c) Given e 0, there exist a closed set F such that F C E and m* (E- F) < E. (d) There exists a set G (a countable intersection of open sets) such that E C G and m* (G - E) 0 (e) There exists a set...
3. Let E E Lm* (Lebesgue measurable set). Prove that there exist a set G (a countable intersection of open sets), and a set F (a countable union of closed sets) such that F CE C G and m* (F) the Lebesgue measure of a set Hint: The Lebesgue measure can be calculated in terms of open and closed sets m* (E) m* (G), where m* denotes
3. Let E E Lm* (Lebesgue measurable set). Prove that there exist a...
Problem 15 (m* (I)) of an interval I is its length (e(I)). Prove that the Lebesgue outer measure (In): EC Ia (In) collection of open interva inf Proof Recall that the Lebesgue outer measure m' (I) n To prove that the Lebesgue outer measure is equivalent to the length of the interval, we will first 167 7.4. Measure Theory Problem Set 4: Outer Measure consider an unbounded interval I. Note that an unbounded interval cannot be covered by a fi-...
7. (10%) Let f: [0,1] R be defined by _x xe[0,1]n f(x) 0 otherwise Is fe L[0,1]? If yes, find its Lebesgue integral. i) Is feR[O,1] ? If yes, find its Riemann integral. ii) ii) What is lim || |, ?
7. (10%) Let f: [0,1] R be defined by _x xe[0,1]n f(x) 0 otherwise Is fe L[0,1]? If yes, find its Lebesgue integral. i) Is feR[O,1] ? If yes, find its Riemann integral. ii) ii) What is lim ||...
Please prove Problem 11 & 12 carefully
(note that m represents Lebesgue measure & m* represents
Lebesgue outer measure):
11. Let E c Rn be an arbitrary subset. Show that for all є > 0 there exists an open set G containing E with m(G) m"(E) +e. 12. Let E C Rn be a measurable subset. Show that for all € > 0 there exists an open set G containing Ewith m (G\ E) < є.
11. Let E c...
Exercise 5.3.2. [Used in Exercise 5.5.6.] Let [a,b] C R be a non-degenerate closed bounded interval, and let f: la,b] R be a function. Suppose that f is integrable Prove that if If(x)l S M for all xe la, b], for some M E R, then Jx)ds M(b-a)
Exercise 5.3.2. [Used in Exercise 5.5.6.] Let [a,b] C R be a non-degenerate closed bounded interval, and let f: la,b] R be a function. Suppose that f is integrable Prove that if...
31 (a) If fis integrable, prove that fa is integrable. Hint: Given e>0, let h and k be step functions such that h f k and j (k-h) < ε/M, where M is the maximum value of Ik(x) +h(x)]. Then prove that h and k2 are step functions with h' srsk (we may assume that OShSSk since f is integrable if and only if I is-why?), and that I (k2 - h2) <e. Then apply Theorem 3.3. (b) If fand...
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