collaborators

2 papers

math.GR2023

Profinite Completion of Free Pro- Groups

Tamar Bar-On

We investigate the ability of a free pro-$\CC$ group of infinite rank to abstractly solve abstract embedding problems, and conclude that for some varieties $\CC$, the profinite com…

math.NT2023

Cohomological properties of absolute Galois groups and their profinite completion

Tamar Bar-On

We prove that several properties of absolute Galois groups are preserved under a profinite completion.