Cancellation of Abelian groups of finite rank modulo elementary equivalence.
Carriers of torsion-free groups
Character sums in complex half-planes
Let be a finite subset of an abelian group and let be a closed half-plane of the complex plane, containing zero. We show that (unless possesses a special, explicitly indicated structure) there exists a non-trivial Fourier coefficient of the indicator function of which belongs to . In other words, there exists a non-trivial character such that .
Classification of torsion free abelian minimax groups
Cobalanced exact sequences
Computation of the mapping of factorization by the radical for of the endomorphism ring.
Concerning almost divisible torsion free abelian groups