Abstract
We present a theorem on the existence of local continuous
homomorphic inverses of surjective Borel homomorphisms with
countable kernels from Borel groups onto Polish groups. We also
associate in a canonical way subgroups of
We present a theorem on the existence of local continuous
homomorphic inverses of surjective Borel homomorphisms with
countable kernels from Borel groups onto Polish groups. We also
associate in a canonical way subgroups of