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vectors pure and applied Exercise 11.3.1 Let Co(R) be the space of infinitely differentiable functions f R R. Show that CoCIR) is a vector space over R under pointwise addition and scalar multipl...
Problem 3. Let D be the vector space of all differentiable function R wth the usual pointwise add...
Problem 3. Let D be the vector space of all differentiable function R wth the usual pointwise addition and scalar multiplication of functions. In other words, for f, g E D and λ E R the function R defined by: (f +Ag) ()-f(r) +Ag(x) Let R be four functions defined by: s(x)-: sin 11 c(r) : cosz, co(z)--cos(z + θ), and so(r) sin(z + θ), and Wspanls, c Which of the following statements are true: (a) For each fixed θ...
Let V = Cº(R) be the vector space of infinitely differentiable real valued functions on the...
Let V = Cº(R) be the vector space of infinitely differentiable real valued functions on the real line. Let D: V → V be the differentiation operator, i.e. D(f(x)) = f'(x). Let Eq:V → V be the operator defined by Ea(f(x)) = eax f(x), where a is a real number. a) Show that E, is invertible with inverse E-a: b) Show that (D – a)E, = E,D and deduce that for n a positive integer, (D – a)" = E,D"...
Problem 6. Let Coo(R) denote the vector space of functions f : R → R such...
Problem 6. Let Coo(R) denote the vector space of functions f : R → R such that f is infinitely differentiable. Define a function T: C (RCo0 (R) by Tf-f -f" a) Prove that T is a linear map b) Find a two-dimensional subspace of null(T).
Problem 4. Let V be the vector space of all infinitely differentiable functions f: [0, ]...
Problem 4. Let V be the vector space of all infinitely differentiable functions f: [0, ] -» R, equipped with the inner product f(t)g(t)d (f,g) = (a) Let UC V be the subspace spanned by B = (sinr, cos x, 1) (you may assume without proof that B is linearly independent, and hence a basis for U). Find the B-matrix [D]93 of the "derivative linear transformation" D : U -> U given by D(f) = f'. (b) Let WC V...
TO SOLVE Exercise 27.4 (truncation) For fC(R), show that there exists φ E (R) that agrees with f ...
This is a Fourier Analysis Question
TO SOLVE Exercise 27.4 (truncation) For fC(R), show that there exists φ E (R) that agrees with f on [-1, 1]. FOR REFERENCE, DO NOT SOLVE The basic idea for generalizing the notion of function in the context of distributions is to regard a function as an operator Ty (called a functional) acting by integration on functions themselves: and integration by parts shows that Ty(y) - 15.1.7 Definition (R) (or (I) will denote the...
Vectors pure and applied Exercise 5.7.13 Let U be a finite dimensional vector space over F...
Vectors pure and applied
Exercise 5.7.13 Let U be a finite dimensional vector space over F and let a, B: UU he linear. State and prove necessary andsufficient conditions involving α(U) and β(U) for the existence ofa linear map γ : U-+ U with α γ β. When is γ unique and Explain how this links with the necessary and sufficient condition of Exercise 5.7.1 Generalise the result of this question and its parallel in Exercise 5.7.1 to the case...
Please answer C 3. (8 marks total) Show which of the following mappings between real vector spaces are lincar and which...
Please answer C
3. (8 marks total) Show which of the following mappings between real vector spaces are lincar and which are not lincar (a) LRR2 defined by L1(x) (r, 2x). (b) L2 R2 -R2, defined by L2(r, y) (cos(30) -ysin(30), z sin(30) +ycos(30)). (c)L:F(R;R) >R, defined by L()-s()(1) (d) L4 : Cao(R: R) > R, defined by Ldf) =おf(t)dt. (Notes: (i) The real vector space (F(R:R),+) consists of all functions from R to R (i.c. all real-valued functions of...
Please answer D 3. (8 marks total) Show which of the following mappings between real vector spaces are lincar and which...
Please answer D
3. (8 marks total) Show which of the following mappings between real vector spaces are lincar and which are not lincar (a) LRR2 defined by L1(x) (r, 2x). (b) L2 R2 -R2, defined by L2(r, y) (cos(30) -ysin(30), z sin(30) +ycos(30)). (c)L:F(R;R) >R, defined by L()-s()(1) (d) L4 : Cao(R: R) > R, defined by Ldf) =おf(t)dt. (Notes: (i) The real vector space (F(R:R),+) consists of all functions from R to R (i.c. all real-valued functions of...
Materials: ------------------------------------------------------------------ 9. Let f E (R" where R" is the standard Euclidean space (vector space...
Materials:
------------------------------------------------------------------
9. Let f E (R" where R" is the standard Euclidean space (vector space Rn equipped with the Euclidean scalar product) (i) Explain why there are constants ai,....an R such that 21 ii) Obtain u R" such that f(x)-(1,2), х є R". (ii Explain why the correspondence f u establishedin) is 1-1, onto, and linear so that (R" and R" may be viewed identical. With the usual addition and multiplication, the sets of rational numbers, real numbers, and...
Problem 5. Given vi,v2,... ,Vm R", let RRm be defined by f(x)-x, v1), x, v2), (x, Vm where (x' y)...
Problem 5. Given vi,v2,... ,Vm R", let RRm be defined by f(x)-x, v1), x, v2), (x, Vm where (x' y) is the standard inner product of Rn Which of the following statement is incorrect? 1. Taking the standard bases Un on R": codomain: MatUn→Un(f)-(v1 2. Taking the standard bases Un on R: codomain: v2 vm) Matf)- 3. f is a linear transformation. 4. Kerf- x E Rn : Vx = 0 , where: Problem 8. Which of the following statements...
Problem 3. Let D be the vector space of all differentiable function R wth the usual pointwise addition and scalar multiplication of functions. In other words, for f, g E D and λ E R the function R defined by: (f +Ag) ()-f(r) +Ag(x) Let R be four functions defined by: s(x)-: sin 11 c(r) : cosz, co(z)--cos(z + θ), and so(r) sin(z + θ), and Wspanls, c Which of the following statements are true: (a) For each fixed θ...
Let V = Cº(R) be the vector space of infinitely differentiable real valued functions on the real line. Let D: V → V be the differentiation operator, i.e. D(f(x)) = f'(x). Let Eq:V → V be the operator defined by Ea(f(x)) = eax f(x), where a is a real number. a) Show that E, is invertible with inverse E-a: b) Show that (D – a)E, = E,D and deduce that for n a positive integer, (D – a)" = E,D"...
Problem 6. Let Coo(R) denote the vector space of functions f : R → R such that f is infinitely differentiable. Define a function T: C (RCo0 (R) by Tf-f -f" a) Prove that T is a linear map b) Find a two-dimensional subspace of null(T).
Problem 4. Let V be the vector space of all infinitely differentiable functions f: [0, ] -» R, equipped with the inner product f(t)g(t)d (f,g) = (a) Let UC V be the subspace spanned by B = (sinr, cos x, 1) (you may assume without proof that B is linearly independent, and hence a basis for U). Find the B-matrix [D]93 of the "derivative linear transformation" D : U -> U given by D(f) = f'. (b) Let WC V...
This is a Fourier Analysis Question
TO SOLVE Exercise 27.4 (truncation) For fC(R), show that there exists φ E (R) that agrees with f on [-1, 1]. FOR REFERENCE, DO NOT SOLVE The basic idea for generalizing the notion of function in the context of distributions is to regard a function as an operator Ty (called a functional) acting by integration on functions themselves: and integration by parts shows that Ty(y) - 15.1.7 Definition (R) (or (I) will denote the...
Vectors pure and applied
Exercise 5.7.13 Let U be a finite dimensional vector space over F and let a, B: UU he linear. State and prove necessary andsufficient conditions involving α(U) and β(U) for the existence ofa linear map γ : U-+ U with α γ β. When is γ unique and Explain how this links with the necessary and sufficient condition of Exercise 5.7.1 Generalise the result of this question and its parallel in Exercise 5.7.1 to the case...
Please answer C
3. (8 marks total) Show which of the following mappings between real vector spaces are lincar and which are not lincar (a) LRR2 defined by L1(x) (r, 2x). (b) L2 R2 -R2, defined by L2(r, y) (cos(30) -ysin(30), z sin(30) +ycos(30)). (c)L:F(R;R) >R, defined by L()-s()(1) (d) L4 : Cao(R: R) > R, defined by Ldf) =おf(t)dt. (Notes: (i) The real vector space (F(R:R),+) consists of all functions from R to R (i.c. all real-valued functions of...
Please answer D
3. (8 marks total) Show which of the following mappings between real vector spaces are lincar and which are not lincar (a) LRR2 defined by L1(x) (r, 2x). (b) L2 R2 -R2, defined by L2(r, y) (cos(30) -ysin(30), z sin(30) +ycos(30)). (c)L:F(R;R) >R, defined by L()-s()(1) (d) L4 : Cao(R: R) > R, defined by Ldf) =おf(t)dt. (Notes: (i) The real vector space (F(R:R),+) consists of all functions from R to R (i.c. all real-valued functions of...
Materials:
------------------------------------------------------------------
9. Let f E (R" where R" is the standard Euclidean space (vector space Rn equipped with the Euclidean scalar product) (i) Explain why there are constants ai,....an R such that 21 ii) Obtain u R" such that f(x)-(1,2), х є R". (ii Explain why the correspondence f u establishedin) is 1-1, onto, and linear so that (R" and R" may be viewed identical. With the usual addition and multiplication, the sets of rational numbers, real numbers, and...
Problem 5. Given vi,v2,... ,Vm R", let RRm be defined by f(x)-x, v1), x, v2), (x, Vm where (x' y) is the standard inner product of Rn Which of the following statement is incorrect? 1. Taking the standard bases Un on R": codomain: MatUn→Un(f)-(v1 2. Taking the standard bases Un on R: codomain: v2 vm) Matf)- 3. f is a linear transformation. 4. Kerf- x E Rn : Vx = 0 , where: Problem 8. Which of the following statements...
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