First order k variable logic of sparse random graphs
Andriaherimanana Sarobidy Razafimahatratra, Maksim Evgen'evich Zhukovskii · arXiv (Cornell University) · 2018
In this paper, we prove that for every positive $\varepsilon$, there exists an $\alpha\in(1/(k-1),1/(k-1)+\varepsilon)$ such that the binomial random graph $G(n,n^{-\alpha})$ does not obey 0-1 law w.r.t. first order sentences with k variables. In contrast, for every $\alpha\in(0,1/(k-1)]$, $G(n,n^{-\alpha})$ obeys 0-1 law w.r.t. this logic.