2 papers
math.NT2005
On the distribution of r-tuples of squarefree numbers in short intervals
Doychin Tolev
We cosider the number of r-tuples of squarefree numbers in a short interval. We prove that it cannot be much bigger than the expected value and we also estabish an asymptotic formu…
math.GR2005
Characteristic properties of large subgroups in primary abelian groups
Peter V Danchev
Suppose is an arbitrary additively written primary abelian group with a fixed large subgroup . It is shown that is (a) summable; (b) -summable;\break (c) a -group;…