On Different Types of Automorphism Groups

In Group there are different kind of automorphism groups like Central Automorphisms Group, AbsoluteCentral Automorphisms Group, Inner-automorphisms group etc. It is an interesting problem to check whether two different types of automorphism groups of a group are either equal or isomorphic. Main objective of this book is to study, when some of different automorphism groups of finitely generated groups are either equal or isomorphic.