Exercise 1. Let (X,dx) be a compact metric space. (a) Verify that dy(f, g) = E 2-"dx(f(n), g(n)) nƐN defines a metric on Y = {f : N → X}. (b) Show that Y is compact.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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(Please do part b) Show that Y is compact.

Exercise 1. Let (X, dx) be a compact metric space.
(a) Verify that
dy (f, g)
= £2¯"dx(f(n), g(n))
X
nƐN
defines a metric on Y = {f:N → X }.
(b) Show that Y is compact.
Transcribed Image Text:Exercise 1. Let (X, dx) be a compact metric space. (a) Verify that dy (f, g) = £2¯"dx(f(n), g(n)) X nƐN defines a metric on Y = {f:N → X }. (b) Show that Y is compact.
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