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math.NT2013★ 11 cited
The density of twins of -free numbers
Rainer Dietmann, Oscar Marmon
For , we consider the number of positive integers such that both and are -free. We prove an asymptotic formula $A_k(Z) = c_k Z + O(Z^{14/…
math.NT2013
On the representation of quadratic forms by quadratic forms
Rainer Dietmann, Michael Harvey
Using the circle method, we show that for a fixed positive definite integral quadratic form , the expected asymptotic formula for the number of representations of a positive def…