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ON THE ASYMPTOTIC FORMULA IN WARING'S PROBLEM: ONE SQUARE AND THREE FIFTH POWERS

Published online by Cambridge University Press:  18 December 2014

JÖRG BRÜDERN*
Affiliation:
Mathematisches Institut, Bunsenstrasse 3–5, D-37073 Göttingen, Germany e-mail: bruedern@uni-math.gwdg.de
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1. Let r(n) denote the number of representations of the natural number n as the sum of one square and three fifth powers of positive integers. A formal use of the circle method predicts the asymptotic relation (1)

$ \begin{equation*} r(n) = \frac{\Gamma(\frac32)\Gamma(\frac65)^3}{\Gamma(\frac{11}{10})} {\mathfrak s}(n) {n}^\frac1{10} (1 + o(1)) \qquad (n\to\infty). \end{equation*} $
Here ${\mathfrak s}$(n) is the singular series associated with sums of a square and three fifth powers, see (13) below for a precise definition. The main purpose of this note is to confirm (1) in mean square.

Type
Research Article
Copyright
Copyright © Glasgow Mathematical Journal Trust 2014 

References

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