10 citations · 14 across the 2 of their papers we have counts for
2 papers
math.GR2010★ 4 cited
Powers of sets in free groups
Stanislav Safin
We prove that |A^n| > c_n |A|^{[\frac{n+1}{2}]} for any finite subset A of a free group if A contains at least two noncommuting elements, where c_n>0 are constants not depending on…
hep-th1994★ 10 cited
Dynamical systems accepting the normal shift on an arbitrary Riemannian manifold
A. Yu. Boldin, V. V. Dmitrieva, S. S. Safin +1
Newtonian dynamical systems which accept the normal shift on an arbitrary Riemannian manifold are considered. For them the determinating equations making the weak normality conditi…