Let (V,〈 , 〉v) and (W.〈 , 〉w) be finite-dimensional inner product spaces. Recall that the adjoint L* : W → V of a l...
Problem 3 (Inner Products). (a) Let V, W be two finite dimensional vector spaces, dim V = n, dim W-m and V x W-+ R be a bilinear function, i.e., for each a V and b E W: 1(a, r-Ay)-I(a,r) + λ|(a, y), for all r, y W, λ ε R and 1(u + λν, b)-1(u, b) + λ|(u, b), for all u, u ε ν, λ ε R. Thus for each fixed a E V, W 14-R is a...
Let V be a finite-dimensional inner product space, and let U and W be subspaces of V. Denote dim(V) = n, dim(U) = r, dim(W) = s. Recall that the proj and perp maps with respect to any subspace of V are linear transformations from V to V. Select all statements that are true. Note that not all definitions above may be used in the statements below If proju and perpu are both surjective, then n > 0 If perpw...
Orthogonal projections. In class we showed that if V is a finite-dimensional inner product space and U-V s a subspace, then U㊥ U↓-V, (U 1-U, and Pb is well-defined Inspecting the proofs, convince yourself that all that was needed was for U to be finite- dimensional. (In fact, your book does it this way). Then answer the following questions (a) Let V be an inner product space. Prove that for any u V. if u 0, we have proj, Pspan(v)...
2 points True or False Question Let V be a finite-dimensional inner product space, and let W be a subspace of V. Denote dim(V) = n. Recall that the projw and perpw maps are linear transformations from V to V. Is the following statement true or false? "If nullity(projw) = 0 then V=W". Note: There is no Verify button here. Select your answer and navigate to the next question. True False
3. Let V be a finite dimensional inner product space, and suppose that T is a linear operator on this space. (i) Let B be an ordered orthonormal basis for V and let U be the linear operator on V determined by [U19 = (T);. Then, for all 01,09 € V, (01, T(02)) = (U(V1), v2) (ii) Prove that the conclusion of the previous part does not hold, in general, if the basis 8 is not orthonormal.
Let V and W be finite dimensional vector spaces over R and T:V + W be linear. Let V be a subspace of V and Wo = T(V). (Select ALL that are TRUE) If T is surjective then Vo = {v EV : there is w E Wo such that T(v) = w} If T is injective then dim(VO) = dim(W). dim(ker(T) n Vo) = dim(VO) - dim(Wo).
Problem 13.5. Let V and W be inner product spaces and T є L(V : W). Let(..) v and (..)w denote their respective mner products. Let ui, , uk be an orthonormal basts o V and W1,…,wn an orthonormal bass o W. Let A and A* be the matrices representing T and T with respect to the given bases. Show that A. = A i.e., A. is obtained from A by taking the transpose and conjugating all the entries (in...
Vectors pure and applied
Exercise 11.5.9 Let U and V be finite dimensional spaces over F and let θ : U linear map. v be a (i) Show that o is injective if and only if, given any finite dimensional vector space W map : V W such that over F and given any linear map α : U-+ W, there is a linear (ii) Show that θ is surjective if and only if, given any finite dimensional vector space...
Let V and W be finite dimensional vector spaces and let T:V → W be a linear transformation. We say a linear transformation S :W → V is a left inverse of T if ST = Iy, where Iy denotes the identity transformation on V. We say a linear transformation S:W → V is a right inverse of T if TS = Iw, where Iw denotes the identity transformation on W. Finally, we say a linear transformation S:W → V...
4. Let TV - V be a linear operator on a finite dimensional inner product space V and P be the orthogonal projection of V onto the subspace W of V. a) Show that is invariant under T if and only if PTP = TP. b) Show that w and we are both invariant under 7 If and only if PT = TP