Relations Related to Betweenness : Their Structure and Automorphisms

ISBN-13: 9780821806234 / Angielski / Miękka / 1998 / 138 str.

S. A. Adeleke; Peter M. Neumann

Opis

This volume is about tree-like structures, namely semilinear ordering, general betweenness relations, C-relations and D-relations. It contains a systematic study of betweenness and introduces C- and D- relations to describe the behaviour of points at infinity (leaves or ends or directions of trees). The focus is on structure theorems and on automorphism groups, with applications to the theory of infinite permutation groups.