Thursday, 13 March 2008

real analysis - Integrability of derivatives

I believe this answers the question:




MR0425042 (54 #13000)
Goffman, Casper
A bounded derivative which is not Riemann integrable.
Amer. Math. Monthly 84 (1977), no. 3, 205--206.



In 1881 Volterra constructed a bounded derivative on [0,1] which is not Riemann integrable. Since that time, a number of authors have constructed other such examples. These examples are generally relatively complicated and/or involve nonelementary techniques. The present author provides a simple example of such a derivative f and uses only elementary techniques to show that f has the desired properties.




The paper is available here:



http://math.uga.edu/~pete/Goffman77.pdf

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