The isometry group of Outer Space

Moduli of graphs and automorphisms of free groups

Marc Culler, Karen Vogtmann · Inventiones mathematicae · 1986 · 549 citations

Graph Theory, Algebraic Graph Theory, Structural Graph Theory +2

Train Tracks and Automorphisms of Free Groups

Mladen Bestvina, Michael Handel · Annals of Mathematics · 1992 · 470 citations

Group Structure, Group Representation, Train Tracks +1

Group Actions On R-Trees

Marc Culler, John W. Morgan · Proceedings of the London Mathematical Society · 1987 · 239 citations

Tree Language, Geometric Group Theory, Tree Automaton +2

Automorphisms of Free Groups and Outer Space

Karen Vogtmann · Geometriae Dedicata · 2002 · 143 citations

THE FREQUENCY SPACE OF A FREE GROUP

Ilya Kapovich · International Journal of Algebra and Computation · 2005 · 52 citations

Spectral Theory, Natural Action, Measure Theory +10