Question

Let (X, dX) and (Y, dY ) be metric spaces and let f : X →...

Let (X, dX) and (Y, dY ) be metric spaces and let f : X → Y be a continuous bijection. Prove that if (X, dX) is compact, then f is a homeomorphism

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Two metric spaces (X,dx) and (Y,dY) are said to be bi-Lipshitz equivalent if there exists a...
Two metric spaces (X,dx) and (Y,dY) are said to be bi-Lipshitz equivalent if there exists a surjective function f: X -> Y and a number K >= 1 such that for all x1,x2 in X it the case (1/K)dx(x1,x2)<=dY(f(x1),f(x2))<=Kdx(x1,x2) Prove the function f of the definition of bi-Lipschitz equivalence is a bijection. (Geometric group theory)
Let X and Y be metric spaces. Let f be a continuous function from X onto...
Let X and Y be metric spaces. Let f be a continuous function from X onto Y, that is the image of f is equal to Y. Show that if X is compact, then Y is compact
The product of two metric spaces (Y, dY ) and (Z, dZ) is the metric space...
The product of two metric spaces (Y, dY ) and (Z, dZ) is the metric space (Y × Z, dY ×Z), where dY ×Z is defined by dY ×Z((y, z),(y 0 , z0 )) = dY (y, y0 ) + dZ(z, z0 ). Assume that (Y, dY ) and (Z, dZ) are compact. Prove that (Y × Z, dY × dZ) is compact.
Please prove the following theorem: Suppose (X,p) and (Y,b) are metric spaces, X is compact, and...
Please prove the following theorem: Suppose (X,p) and (Y,b) are metric spaces, X is compact, and f:X→Y is continuous. Then f is uniformly continuous.
Let X, Y be metric spaces, with Y complete. Let S ⊂ X and let f...
Let X, Y be metric spaces, with Y complete. Let S ⊂ X and let f : S → Y be uniformly continuous. (a) Suppose p ∈ S closure and (pn) is a sequence in S with pn → p. Show that (f(pn)) converges in y to some point yp.
Assume that (X, dX) and (Y, dY ) are complete spaces, and give X × Y...
Assume that (X, dX) and (Y, dY ) are complete spaces, and give X × Y the metric d defined by d((x1, y1),(x2, y2)) = dX(x1, x2) + dY (y1, y2) Show that (X × Y, d) is complete.
Let (X1,d1) and (X2,d2) be metric spaces, and let y∈X2. Define f:X1→X2 by f(x) =y for...
Let (X1,d1) and (X2,d2) be metric spaces, and let y∈X2. Define f:X1→X2 by f(x) =y for all x∈X1. Show that f is continuous. (TOPOLOGY)
Let (X, d) be a compact metric space and F: X--> X be a function such...
Let (X, d) be a compact metric space and F: X--> X be a function such that d(F(x), F(y)) < d(x, y). Let G: X --> R be a function such that G(x) = d(F(x), x). Prove G is continuous (assume that it is proved that F is continuous).
Let (X, d) be a compact metric space and let A ⊆ X. Suppose that A...
Let (X, d) be a compact metric space and let A ⊆ X. Suppose that A is not compact. Prove that there exists a continuous function f : A → R, from (A, d) to (R, d|·|), which is not uniformly continuous.
If X, Y are topological spaces and f : X → Y we call the graph...
If X, Y are topological spaces and f : X → Y we call the graph of f the set Γf = {(x, f(x)); x ∈ X} which is a subset of X × Y. If X and Y are metric spaces and f is a continuous function prove that the graph of f is a closed set.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT