Tensor Calculus 20: The Abstract Covariant Derivative (Levi-Civita Connection)
24:10
Tensor Calculus 21: Lie Bracket, Flow, Torsion Tensor (contains error; see pinned comment)
22:50
Tensor Calculus 19: Covariant Derivative (Intrinsic) and Geodesics
33:51
Tensor Calculus 18: Covariant Derivative (extrinsic) and Parallel Transport
23:58
True Meaning of 2nd Derivative Test | Symmetric Tensors, Spectral Theorem, Principal Axes Theorem
29:13
Tensor Calculus 22: Riemann Curvature Tensor Geometric Meaning (Holonomy + Geodesic Deviation)
23:38
Conceptualizing the Christoffel Symbols: An Adventure in Curvilinear Coordinates
19:03
Deep Dive into Christoffel Symbols
54:11