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- Newsgroups: sci.math
- Path: sparky!uunet!gatech!destroyer!ncar!noao!stsci!kimball
- From: kimball@stsci.edu (Timothy Kimball)
- Subject: Re: Stationary points on jello
- Message-ID: <1993Jan25.150105.15094@stsci.edu>
- Sender: news@stsci.edu
- Organization: Space Telescope Science Institute
- X-Newsreader: TIN [version 1.1 PL6]
- References: <1993Jan24.050506.24529@CSD-NewsHost.Stanford.EDU>
- Date: Mon, 25 Jan 1993 15:01:05 GMT
- Lines: 21
-
- Ramin Zabih (rdz@sail.stanford.edu) wrote:
- : Suppose that you are given some surface that deforms totally
- : arbitrarily. Is there any sensible definition for what it would mean
- : for a point to stay in the "same place" as the surface deforms?
- : --
- :
- It seems to my tiny, physics-trained mind that for something to
- have a "place" means it has coordinates. Where you put the coordinates
- would be all-important. If you attach it to the jello and let it
- deform withe the jello, then the points could, I suppose be thought
- of as always being in the same place. If, however, you fix the
- coordinates to the surrounding laboratory, then the points could
- move with respect to it.
-
- I know this must be mathematically naive, but it's a shot.
- A more mathematical point of view would be welcome.
-
- --
-
- /* tdk -- Opinions are mine, not my employer's. */
- /* except maybe for the part about "tiny mind..." */
-