Special Relativity, Einstein Velocity Addition, and Gyrogroups: An Introduction: https://arxiv.org/abs/2202.08204
Jimmie D. Lawson
In these notes we give an introductory unified treatment to the topics of special relativity, Lorentz transformations and the Lorentz group, Einstein velocitiy addition, and gyrogroups and gyrovector spaces. An effort has been made to present the material in a manner that is accessible to non-specialists and graduate students, and may even serve as the basis for a graduate course or seminar.
Comments: Edited Class Notes