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Eine Bemerkung zu den Nielsen-Transformationen.

G. Rosenberger, F. Tessun (1977)

Monatshefte für Mathematik

Embeddings of graph braid and surface groups in right-angled Artin groups and braid groups.

Crisp, John, Wiest, Bert (2004)

Algebraic & Geometric Topology

Ends and Amalgamated Free Products of Groups.

Peter C. Oxley (1972)

Mathematische Zeitschrift

Equalizers and coactions of groups

Martin Arkowitz, Mauricio Gutierrez (2002)

Fundamenta Mathematicae

If f:G → H is a group homomorphism and p,q are the projections from the free product G*H onto its factors G and H respectively, let the group $_{f} \subseteq G * H$ be the equalizer of fp and q:G*H → H. Then p restricts to an epimorphism $p_{f} {= p |}_{f} :_{f} \to G$ . A right inverse (section) $G \to_{f}$ of $p_{f}$ is called a coaction on G. In this paper we study $_{f}$ and the sections of $p_{f}$ . We consider the following topics: the structure of $_{f}$ as a free product, the restrictions on G resulting from the existence of a coaction, maps of coactions and the resulting...

Equivariant outer space and automorphisms of free-by-finite groups.

Karen Vogtmann, Sava Krstic (1993)

Commentarii mathematici Helvetici

Existentially closed $L 𝔛$ -groups

Felix Leinen (1986)

Rendiconti del Seminario Matematico della Università di Padova