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rsaavedra
  • Member for 6 years, 4 months
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7 votes
3 answers
2k views

Free energy functions are analytic or non-analytic in phase transitions?

6 votes
1 answer
355 views

Choosing a conserved quantity to obtain a symmety via Noether's Inverse Theorem

5 votes
1 answer
155 views

Parametric and covariant expressions for the acceleration vector

5 votes
2 answers
631 views

Noether's theorem for time dependent non-cyclic Lagrangian

5 votes
1 answer
374 views

What is a quasi-axisymmetric stellarator?

4 votes
2 answers
4k views

Electric octupole moment in cartesian coordinates

4 votes
2 answers
1k views

Proof of the Gauge-invariant momentum operator

3 votes
1 answer
3k views

Derivation of Euler-Lagrange equations from Hamilton's and D'Alembert's principle

3 votes
2 answers
4k views

Number of degrees of freedom of the coupled pendulum problem

2 votes
3 answers
432 views

Is it valid to replace the equations of motion inside a symmetry?

2 votes
1 answer
172 views

Restriction of an operator

2 votes
0 answers
51 views

N-dimensional tori for integrable systems with bounded motion

2 votes
1 answer
84 views

Calculation of the standard symplectic space matrix

1 vote
1 answer
1k views

Stationary states parity of an Anisotropic Harmonic Oscillator

1 vote
1 answer
513 views

Time evolution of mean values for a two-particle system

1 vote
1 answer
377 views

Hessian condition for solving Hamilton-Jacobi equation

1 vote
0 answers
160 views

Canonical transformations including time

1 vote
1 answer
202 views

Hoop spinning around fixed cylinder

1 vote
2 answers
455 views

Showing the invariance of the equations of motion

1 vote
1 answer
78 views

Smallest relative velocity driving a two-stream instability

0 votes
1 answer
276 views

Drift kinetic equation orderings

0 votes
0 answers
60 views

Diffusion equation in energy and magnetic surface coordinates

0 votes
1 answer
124 views

Infinitesimal transformation of a state function

0 votes
1 answer
852 views

Lagrangian for a system of particles

0 votes
1 answer
396 views

Total derivative of the Lagrangian with respect to the action?

0 votes
1 answer
181 views

Assymmetric top with time-varying moment of inertia

0 votes
1 answer
607 views

Stability analysis: small perturbations vs second derivative test

0 votes
1 answer
358 views

Maxwell-Boltzmann statistics partition function: N! or multinomial coefficient?