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- From: sassoj@rs6413.ecs.rpi.edu (John J. Sasso Jr.)
- Subject: Lebesgue measure
- Message-ID: <kck1vcp@rpi.edu>
- Nntp-Posting-Host: rs6413.ecs.rpi.edu
- Reply-To: sassoj@rpi.edu
- Organization: Rensselaer Polytechnic Institute, Troy, NY.
- Date: Fri, 6 Nov 1992 22:43:09 GMT
- Lines: 28
-
-
- Hi,
-
- I am having trouble with two Real Analysis questions, so thought someone
- might help me out.
-
- Q1. If a function f is defined a.e. and continuous a.e. on [0,1], it
- Lebesgue measurable?
- (* I stated that since f is defined & continuous a.e., it is
- Riemann integrable. There is a theorem which states that
- if f is defined & continuous and is Riemann integrable, then
- it is Lebesgue integrable ==>> f is Lebesgue measurable.I get
- stuck here since the 'a.e.' property is not present in this
- theorem
- *)
-
- Q2. Does the above property hold if f is right-differentiable only?
-
- Q3. If Q1 is the set of all rationals in [0,1], and {I[k]} is a finite
- collection of open intervals which contain Q1, show that the sum of
- the Lebesgue measures of I[k] is > 1.
-
-
- Thank you for your assistance.
-
- John
-
-
-