this is special form of dominated convergence theorem.
Un (r)I g(r). In → 1 nniformly on every compact subinterval of (0,00), and g(x) dx < oo Prove that Un (r)I g(r). In → 1 nniformly on every compact subinterval of (0,00), and g(x) dx
xa for some α e R \ {0} G f : (0,00)-(0, oo) : f(x) Prove that G endowed with the binary operation o is a group.
definition of continuity to prove that f : (0,00) by f(x)-13 + 1 is continuous at every Zo 0. Use the є-ð definition ) Use the є- R defined that g(x)-_a_ is continuous at every a є (-1,00) +1
NEED (B) AND (C) 2. (a) Prove that 1 (f, g)=| x2 f(x)g(x)dx is an inner product on the vector space C(I-1,1) of continuous real-valued funo- tions on the domain [-1, 1] (b) Use the Gram-Schmidt process to find an orthonormal basis for P2(R) with re- spect to this inner product (c) Find a polynomial q(x) such that for every p E P2R 2. (a) Prove that 1 (f, g)=| x2 f(x)g(x)dx is an inner product on the vector space...
Assuming g is strictu increasing, prove un → u strongly in qe [1,p) given for ever (X, μ) be a measure space with finite rneasure. Let 1 < p < oo. let g : R → R be a continuous nondecreasing function such that for some constant C0 Define G(t) = Jog(s)ds. Let(%) be a sequence in LP(X) and let u E Lp(X) be such that and limsup G(un)du< where + = 1.
4. Define the function f: 0,00) +R by the formula f(x) = dt. +1 Comment: The integrand does not have a closed form anti-derivative, so do not try to answer the following questions by computing an anti-derivative. Use some properties that we learned. (a) (4 points). Prove that f(x) > 0 for all x > 0, hence f: (0,00) + (0,0). (b) (4 points). Prove that f is injective. (c) (6 points). Prove that f: (0,00) (0,00) is not surjective,...
(4) Define the function f : R -»R* by x-1/2 r> 0 f(x) +oo, (a) Prove that f is measurable (with respect to the Lebesgue measurable sets) (b) Prove that f is integrable on I = [0, 1] and compute the value of f du (4) Define the function f : R -»R* by x-1/2 r> 0 f(x) +oo, (a) Prove that f is measurable (with respect to the Lebesgue measurable sets) (b) Prove that f is integrable on I...
(4) Define the function f : R -> R* by .-1/2 f(x) +oo, (a) Prove that f is measurable (with respect to the Lebesgue measurable sets) (b) Prove that f is integrable on I [0, 1 and compute the value of f du (4) Define the function f : R -> R* by .-1/2 f(x) +oo, (a) Prove that f is measurable (with respect to the Lebesgue measurable sets) (b) Prove that f is integrable on I [0, 1 and...
(12) Suppose that f: [0, o0) - (0, 00) and that f e R((0, n]), for every n E N. Prove that f is Lebesgue measurable, the Lebesgue integral Jo.0)f dA exists, and f dA [0,00) lim f (x)dx noo (12) Suppose that f: [0, o0) - (0, 00) and that f e R((0, n]), for every n E N. Prove that f is Lebesgue measurable, the Lebesgue integral Jo.0)f dA exists, and f dA [0,00) lim f (x)dx noo
- Calculate I (x-1)² -oo (x² + 4x+8) ² dx
1. (a) Prove that a closed subset of a compact set is compact. (b) Let a, b € R and f: R → R, x H ax + b. Prove that f is continuous. Is f uniformly continuous?