6 citations
2 papers
math.CO2013
An inequality on global alliances for trees
Alexandria Yu
In this paper, we prove an inequality on the cardinalities of the minimum size global defensive alliance and the minimum size global offensive alliance. A global defensive alliance…
math.GR2004★ 6 cited
Algebraic entropy of elementary amenable groups
D. V. Osin
We prove that any finitely generated elementary amenable group of zero (algebraic) entropy contains a nilpotent subgroup of finite index or, equivalently, any finitely generated el…