List questions from metric-spaces | MathQa

Closed / open set in $\ell^\infty$ metric space.

Published on 26 Dec 2024 - 4:57

Showing that a subset of the complex plane is open.

Published on 29 Dec 2024 - 12:06

Uniform and Compact Open Topology on spaces of maps from $\mathbb{R} \rightarrow \mathbb{R}$

Published on 12 Jan 2025 - 8:27

Prove $|X+Y| \le |X| + |Y|$

Published on 12 Jan 2025 - 16:42

Continuity of $f^{-1}$

Published on 12 Jan 2025 - 17:12

Metric on $\mathbb R^2$ in which each sphere $B((x,y),r)$ is an equilateral triangle

Published on 26 Dec 2024 - 9:16

Counterexample to show that the interior of union may be larger than the union of interiors

Published on 25 Dec 2024 - 21:27

Distance of a matrix from the orthogonal group

Published on 12 Jan 2025 - 8:32

Completion of a metric space $\mathbb{R}$ with a special metric

Published on 26 Dec 2024 - 0:45

How to Separate two Separate sets?

Published on 02 Jan 2025 - 13:25