1. Let Z be the set of integers, and let B be the set of all subsets of Z of the form {n} with n odd, or {n-1, n, n + 1} with n even. (a) Show that B is a basis for a topology on Z. (b) Is Z equipped with this topology a Hausdorff space? (c) Is Z equipped with this topology a connected space?
1. Let Z be the set of integers, and let B be the set of all subsets of Z of the form {n} with n odd, or {n-1, n, n + 1} with n even. (a) Show that B is a basis for a topology on Z. (b) Is Z equipped with this topology a Hausdorff space? (c) Is Z equipped with this topology a connected space?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Transcribed Image Text:1. Let \( \mathbb{Z} \) be the set of integers, and let \( \mathcal{B} \) be the set of all subsets of \( \mathbb{Z} \) of the form \(\{ n \}\) with \( n \) odd, or \(\{ n-1, n, n+1 \}\) with \( n \) even.
(a) Show that \( \mathcal{B} \) is a basis for a topology on \( \mathbb{Z} \).
(b) Is \( \mathbb{Z} \) equipped with this topology a Hausdorff space?
(c) Is \( \mathbb{Z} \) equipped with this topology a connected space?
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