Donghi Lee

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20012023

most citedEpimorphisms between 2-bridge link groups: Homotopically trivial simple loops on 2-bridge spheres

21 citations · 46 across the 23 of their papers we have counts for

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math.GR2008

On several problems about automorphisms of the free group of rank two

Donghi Lee

Let $F_{n}$ be a free group of rank $n$ . In this paper we discuss three algorithmic problems related to automorphisms of $F_{2}$ . A word $u$ of $F_{n}$ is called positive if $u$ does not…