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- Newsgroups: sci.math
- Path: sparky!uunet!decwrl!csus.edu!netcom.com!kmc
- From: kmc@netcom.com (Kevin McCarty)
- Subject: Re: Lebesgue integral (was: Couple of questions
- Message-ID: <12tnxa#.kmc@netcom.com>
- Date: Thu, 10 Sep 92 21:22:00 GMT
- Organization: Self
- References: <1992Sep9.174910.12677@galois.mit.edu> <18neu6INN32k@function.mps.ohio-state.edu> <1992Sep10.173619.24343@galois.mit.edu>
- Lines: 16
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- In article <1992Sep10.173619.24343@galois.mit.edu> jbaez@riesz.mit.edu (John C. Baez) writes:
- >In article <18neu6INN32k@function.mps.ohio-state.edu> edgar@function.mps.ohio-state.edu (Gerald Edgar) writes:
- >
- >>I have been told that the Lebesgue integral is not needed in physics--
- >>presumably Riemann integral is enough. Do you agree?
- >
- >Last I heard, the Hilbert space of a free particle was L^2(R^3), the
- >space of all functions whose absolute value squared is LEBSEGUE integrable.
-
- But is this a question of convenience or necessity?
- In other words, how badly would you miss them if you threw out the
- non-Riemann-square-integrable functions from L^2(R^3)?
- Could still you do physics with but a slight limp, or would you be
- flat on your back?
- --
- Kevin McCarty (kmc@netcom.com)
-