Characterisation of Semigroups and Rings

This book is written for the students who wants to study the properties of Semi Groups & Rings. I am thankful to Hon. Chairman Sri K.V.V. Satyanarayana Raju, Hon. Vice Chairman Sri K. Sasikiran Varma, Director Dr. P.S. Raju, Principal and Head of the Department for their Extanded Copperation with the blessings of My Mother Srimathi.Venakta Ramananna and My Father Late. Suryanarayana Murthy, I Prepared This Book.