Abstract:
This report is based on a series of lectures delivered by the author at Matscience, to a group of students when interest was
raging in the 'marriage' of internal symmetries with spin. Since, the Lorentz group has always been of importance in theoretical physics, this report is being brought out now, with the hope that it will be of use to the interested graduate student. Lectures on some topics related to the Lorentz group are also included in this report.
