Timeline for Closed geodesics on constant positive Gauss curvature surfaces
Current License: CC BY-SA 4.0
19 events
| when toggle format | what | by | license | comment | |
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| Jul 30, 2018 at 6:31 | history | edited | Narasimham | CC BY-SA 4.0 |
radius formula linking to minimum cusp radius added
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| Jul 30, 2018 at 6:04 | history | edited | Narasimham | CC BY-SA 4.0 |
typo corrected
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| Jul 30, 2018 at 5:51 | history | edited | Narasimham | CC BY-SA 4.0 |
Radius found to obey relation 1) and arc length $2 \pi a $ reported here.
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| Jul 30, 2018 at 5:46 | history | edited | Narasimham | CC BY-SA 4.0 |
Radius found to obey relation 1) and arc length $2 \pi a $ reported here.
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| Jun 24, 2018 at 19:29 | history | edited | Narasimham | CC BY-SA 4.0 |
minor grammar corrections
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| S Jun 24, 2018 at 10:25 | history | suggested | Ali Taghavi |
I add two tags.
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| Jun 24, 2018 at 10:22 | review | Suggested edits | |||
| S Jun 24, 2018 at 10:25 | |||||
| May 28, 2018 at 19:26 | history | edited | Narasimham | CC BY-SA 4.0 |
minor grammar
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| May 28, 2018 at 9:50 | comment | added | Narasimham | 3) When strings (of constant section area) are wound on axi-symmetric surfaces it is the circle nearest to the axis of symmetry of annulus that is the thickest, not its middle. 4) He is most probably referring to sideways (tangential) slip in ice-skating/driving along a circle from variation of Clairaut's constant accomodating geodesic curvature. | |
| May 28, 2018 at 9:49 | comment | added | Narasimham | May I observe in this context, if I understood Bill Thruston properly of the earlier question.. 1) If force $F$ along a string is constant then the moment around symmetry axis $F\cdot ( r \sin \psi) $ is constant, $\psi$ is the angle thread makes to meridian. 2) A physical action of winding of string on a cylinder should result in a thick bead / lump at the ends but not at middle of cylinder after several cycles of geodesics are gone through, as mentioned in his reply. ( contd).. | |
| May 17, 2018 at 5:21 | history | edited | Narasimham | CC BY-SA 4.0 |
grammar
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| May 17, 2018 at 0:45 | comment | added | Joseph O'Rourke | For an image of a "Zoll surface," see this earlier question. Allowing negative curvature leads to different surfaces. | |
| May 17, 2018 at 0:41 | history | edited | Narasimham | CC BY-SA 4.0 |
deleted 2 characters in body
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| May 17, 2018 at 0:39 | vote | accept | Narasimham | ||
| May 17, 2018 at 0:28 | history | edited | Narasimham | CC BY-SA 4.0 |
added a line of geodesic curvature.
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| May 16, 2018 at 8:55 | answer | added | Robert Bryant | timeline score: 10 | |
| May 16, 2018 at 7:06 | history | edited | Narasimham | CC BY-SA 4.0 |
typo corrected
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| May 16, 2018 at 6:34 | history | edited | Narasimham | CC BY-SA 4.0 |
added 80 characters in body
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| May 16, 2018 at 6:23 | history | asked | Narasimham | CC BY-SA 4.0 |