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TOPOLOGICAL DYNAMICS OF STABLE GROUPS

Published online by Cambridge University Press:  12 December 2014

LUDOMIR NEWELSKI*
Affiliation:
INSTYTUT MATEMATYCZNY UNIWERSYTET WROCŁAWSKI PL. GRUNWALDZKI 2/4 50-384 WROCŁAW, POLANDE-mail: [email protected]

Abstract

Assume G is a group definable in a model M of a stable theory T. We prove that the semigroup SG (M) of complete G-types over M is an inverse limit of some semigroups type-definable in Meq. We prove that the maximal subgroups of SG (M) are inverse limits of some definable quotients of subgroups of G. We consider the powers of types in the semigroup SG (M) and prove that in a way every type in SG (M) is profinitely many steps away from a type in a subgroup of SG (M).

Type
Articles
Copyright
Copyright © The Association for Symbolic Logic 2014 

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