-тождества и -многообразия
Generators of Free Product with Amalgamation of two Infinite Cyclic Groups.
Geometry of Free Products.
Gleichungen in freien Produkten mit Amalgam.
Group Extensions with Infinite Conjugacy Classes
We characterize the group property of being with infinite conjugacy classes (or icc, i.e. infinite and of which all conjugacy classes except are infinite) for groups which are extensions of groups. We prove a general result for extensions of groups, then deduce characterizations in semi-direct products, wreath products, finite extensions, among others examples we also deduce a characterization for amalgamated products and HNN extensions. The icc property is correlated to the Theory of von Neumann...
Groups of finite quasi-projective dimension.
Growth tightness of free and amalgamated products