Skip to main content

All Questions

Filter by
Sorted by
Tagged with
1 vote
0 answers
46 views

Resources/explanations for conformal geometry with “null cones at infinity”

In the Wikipedia article on conformal geometry https://en.m.wikipedia.org/wiki/Conformal_geometry there’s a section in Mobius geometry that says it’s the study of pseudo Euclidean spaces with either a ...
Lave Cave's user avatar
  • 1,227
2 votes
0 answers
161 views

conformal compactification $\overline G$

Construct a conformal compactification, $\overline G$ of $G:=\Bbb R^{1,1}_{\gt 0}$ and/or provide a diagram of the conformal compactification of $G?$ conformal compactification Let $G$ have the ...
ModularMindset's user avatar
3 votes
0 answers
36 views

Point compactification of $\mathbb{R}^2$ into $\mathbb{S}^2$

Question : How to show that $(\mathbb{R}^2,\delta)$ is conformal related with $(\mathbb{S}^2,\sigma)$ ? Here we have 1.1) $\delta$ is just the standard euclidian metric in spherical coordinates; 1.2) ...
Powder's user avatar
  • 943
2 votes
0 answers
103 views

Trying to better understand conformally compactified Euclidean space into the unit ball

Goal: To gain a better understanding of Euclidean space, $\Bbb R^3,$ conformally compactified into a unit sphere. Question: How can I visualise and mathematically describe Euclidean space, $\Bbb R^...
ModularMindset's user avatar
3 votes
1 answer
124 views

Calculation to show $|\mathrm{d}r|^2_{\bar g} = 1$ implies sectional curvatures tend to $-1$.

$\textbf{tl;dr:}$ Given that $r$ is a definining function for the boundary of a conformally compact manifold, how does one show that the sectional curvatures tend to $-1$ if $|\mathrm{d}r|^2_{\bar g} =...
Harambe's user avatar
  • 8,336