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Disclaimer: I'm very new to fancy TeX pictures..as you can see by my reputation 1 on this exchange.


I recently came across this post, describing how to the draw parallel transport of a vector on a sphere. For a paper I'm writing, I'd like to do the same on the upper-sheet of a hyperboloid, but I have absolutely no idea how to do this beyond this post showing how to draw a hyperboloid in LaTeX.

In short, how can I code up this picture

enter image description here

where:

  • The blue thing is supposed to be a hyperboloid of one sheet
  • The red squares are supposed to be parts of tangent spaces at two points in the hyperboloid
  • The green arrows are supposed to be orthogonal vectors
  • The brown line is supposed to be a curve travelling along the hyperboloid

So far I have the following (terrible) attempt...

\begin{asy}
import graph3;
unitsize(1cm);

% Setup settings.render=0; settings.prc=false;

size3(25);

% Hyperboloid triple f(pair t){return (sinh(t.y)cos(t.x)/2,sinh(t.y)sin(t.x)/2, cosh(t.y));} surface s=surface(f,(0,-2) ,(2*pi,2),nu=40,nv=40,Spline); draw(s,green+opacity(0.9),render(merge=true));

% Path path3 circX=arc(sinh(t.y),sinh(t.y),4,normal=x); \end{asy}

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    Welcome to TeX.SE! – Mensch Jul 31 '23 at 18:52
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    @Mensch Thanks for the warm welcome. I added a picture of what I'm trying to accomplish in TeX. :) – Mike_MasterinMath Jul 31 '23 at 19:15
  • Hi Mike! Are you still struggling with the parallel transport? I have some ideas about how to draw it; either I develop them or show them in a drawing, but... towards the end of the next week. Anyway, in the second reference the hyperboloid is one sheet; in the drawing is only half of a two sheet. What do you need? – Daniel N Sep 16 '23 at 11:42
  • I guess I'm trying to get a path, with vectors along it transporting (in parallel) the vectors from the bottom of the two-sheet hyperboloid (top component) to some point on it.

    But ya still struggling with it :p

    – Mike_MasterinMath Sep 16 '23 at 21:13

0 Answers0