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Nov 27, 2019 at 21:18 answer added stepanp21 timeline score: 7
Jul 6, 2016 at 14:27 comment added Narasimham The first and second fundamental forms are known, Geodesic curvatures of twisted and untwisted surface geodesics remain the same.This could help to chart their course.But for an untwisted axisymmetric case a single geodesic Clairaut's constant $ r \sin \psi = r_o$ should be given. Depending on this constant and start angle at cuspidal equator there are two ways how geodesics propagate on negative surfaces 1) oscillating/returning geodesics and 2) geodesics asymptotically approaching $ r_o $ This behavior is invariant in twisted surface as well.
Nov 27, 2013 at 18:17 history edited Joseph O'Rourke CC BY-SA 3.0
(Attempt at) Robert's geodesic.
Nov 26, 2013 at 10:44 vote accept Joseph O'Rourke
Nov 25, 2013 at 17:11 history edited Joseph O'Rourke CC BY-SA 3.0
deleted 39 characters in body
Nov 25, 2013 at 14:19 history edited Joseph O'Rourke CC BY-SA 3.0
Curve is not a geodesic.
Nov 25, 2013 at 14:09 answer added Robert Bryant timeline score: 17
Nov 25, 2013 at 12:31 history edited Joseph O'Rourke CC BY-SA 3.0
Image now shows Will Sawin's geodesic.
Nov 25, 2013 at 0:52 history asked Joseph O'Rourke CC BY-SA 3.0