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math.NT2018★ 13 cited
On certain sums concerning the gcd's and lcm's of positive integers
Titus Hilberdink, Florian Luca, László Tóth
We use elementary arguments to prove results on the order of magnitude of certain sums concerning the gcd's and lcm's of positive integers, where is fixed. We refine a…
math.GR2018
Invariant random subgroups of groups acting on rooted trees
Ferenc Bencs, László Márton Tóth
We investigate invariant random subgroups in groups acting on rooted trees. Let be the group of finitary even automorphisms of the -ary rooted tree . We p…