On conjugacy separability of fundamental groups of graphs of groups

M. Shirvani
1992 Transactions of the American Mathematical Society  
A complete determination of when the elements of a fundamental group of a (countable) graph of profinite groups are conjugacy distinguished is given. By embedding an arbitrary fundamental group G into one with profinite vertex groups and making use of the above result, questions on conjugacy separability of G can be reduced to the solution of equations in the vertex groups of G.
doi:10.1090/s0002-9947-1992-1102891-8 fatcat:7lcgubhwp5ezhmoswzaqlnwqcy