Ampleness in the Farey graph
We show that the first-order theory of the Farey graph is $1$-ample but not $2$-ample. Along the way, we prove that it weakly eliminates imaginaries and observe that forking is trivial.
math.LO↗
arXiv subjects
Publications and source records attributed to Zahra Mohammadi Khangheshlaghi.
We show that the first-order theory of the Farey graph is $1$-ample but not $2$-ample. Along the way, we prove that it weakly eliminates imaginaries and observe that forking is trivial.
We axiomatize the theory of the Farey graph and prove that it is $ω$-stable of Morley rank $ω$.
We begin the investigation of the free factor complex of a free group of finite rank. For the case of rank 2 we axiomatize its theory and show that it is $ω$-stable with prime model $AF_2$.