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Can someone link me the proof that $E(r)/r^{1/2}$ -> infinity when $r$->infinity? Where #lattice points in circle = $Pi*r^2+E(r)$

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    $\begingroup$ The original source is G.H. Hardy, On the Expression of a Number as the Sum of Two Squares, Quart. J. Math. 46, (1915), pp.263–283 . Doesn't seem to be online. This undergrad thesis math.rochester.edu/undergraduate/sums/reu/… repeats the argument. $\endgroup$ – David E Speyer Oct 14 '14 at 19:15

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