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math.GR2015
Asymptotic density of test elements in free groups and surface groups
Ilir Snopce, Slobodan Tanushevski
An element of a group is a test element if every endomorphism of that fixes is an automorphism. Let be a free group of finite rank, an orientable surface group…
math.GR2015
Test elements in pro- groups with applications in discrete groups
Ilir Snopce, Slobodan Tanushevski
Let be a group. An element is called a test element of if for every endomorphism , implies that is an automorphism. We prove that for a fi…