Differential Forms for Cartan-Klein Geometry

Differential geometry is explored through the lens of differential forms, offering insights into lesser-known topics such as the work of B. Riemann and F. Klein, and their evolution into E. Cartan's theories. The book presents a unified approach to various conservation laws and highlights the significance of the Einstein 3-form over the traditional Einstein tensor, illustrating their connection. Selected examples enhance understanding, while advanced commentary provides deeper insights throughout the text, making it a valuable resource for learners.