For those accessing a PDF resource or textbook on general relativity, several key concepts are essential to grasp:
How to take derivatives on a curved surface without "falling off" the manifold. the theoretical minimum general relativity pdf
General Relativity: The Theoretical Minimum , authored by Leonard Susskind and André Cabannes, was released in January 2023. It is the fourth volume in The Theoretical Minimum For those accessing a PDF resource or textbook