Basic question on second covariant derivative
87800
Covariant derivative ambiguity
10785
Form of the Classical EM Lagrangian
28946
Derivation of Spin Lagrangian
75548
second derivative of the inverse function
55089
Basis of the space of vector fields on smooth manifolds
23729
Four-velocity in General-relativistic geodesic equation
153707
Is the Lie bracket of two vector fields well defined?
105398
Physical intuition for higher order derivatives
30723
Second derivative "formula derivation"
108593
First order weak derivatives of $f(x)=|x|^r$
125774
Derivative of $a^x$ from first principles
71496
Explanation behind Second Derivative of a Parametric Equation Formula
96880
How to obtain Hamiltonian formalism and phase space for Lagrangian with second-derivatives?
70880
Invariance of canonical Hamiltonian equation when adding the total time derivative of a function of $q_i$ and $t$ to the Lagrangian
68752
A few questions about infinite derivative.
116427
$(c^{\mu}\partial_{\mu}-m)\phi(x)=0$ not Lorentz-invariant?
13786
A question in Special Relativity