Lectures related to Proper length

Explores Testing General Relativity with Cosmology, covering topics like the curvature tensor, teleparallelism, and black holes in f(Q).

Explores the intrinsic geometry of regular surfaces and isometric transformations, including spheres and cylinders.

Covers the second criterion of diagonalization and similar matrices in linear applications.

Covers Einstein's equations in non-relativistic limit and the Schwarzschild metric.