on the general, the special and the general-special relativity theory

From the foreword by Dr. rer. pol. Erik Kolek This book provides a simple yet accurate introduction to Albert Einstein’s general and special theories of relativity and Erik Kolek’s general-special theory of relativity. To understand this book, a basic knowledge of the mathematics of theoretical physics is required, as the contents are described based on a general scientific and philosophical view of this theory of relativity.