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user1887919
  • Member for 10 years, 5 months
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5 votes
2 answers
432 views

Integral in 3 dimensions

5 votes
0 answers
67 views

References for finding coordinates in which some natural Hamiltonian becomes separable

5 votes
4 answers
2k views

Probability you run out of white balls first?

3 votes
1 answer
1k views

Separability of Natural Hamiltonians

3 votes
1 answer
3k views

Dirac delta function of x squared

2 votes
1 answer
4k views

How to calculate this integral in 3 dimensions involving the Dirac delta function?

2 votes
1 answer
591 views

Symplectic Runge-Kutta methods

2 votes
1 answer
79 views

Special case of this general integral

2 votes
3 answers
298 views

Solving a nonlinear, first order ODE with a trig function

1 vote
0 answers
33 views

Approximating 2 linear functions in a continuous way

1 vote
0 answers
145 views

Energy conserving Hamiltonian numerical integration

1 vote
0 answers
40 views

Determining the initial conditions on a set of PDEs

1 vote
1 answer
40 views

How to eliminate this variable from set of simultaneous quadratic forms, in terms of determinants?

1 vote
1 answer
23 views

Making an equation separable via a change of coordinates

1 vote
1 answer
2k views

Product of two Levi-Cevita tensors in 4 dimensions

1 vote
1 answer
349 views

Tensor manipulation involving Levi-Cevita tensor

1 vote
1 answer
217 views

Parameterising all vectors a fixed angle from another vector in 3D

1 vote
1 answer
1k views

Integration by parts of a functional with a Lagrange Multiplier

1 vote
1 answer
4k views

Find a vector perpendicular to a surface

1 vote
0 answers
243 views

Inverse Fourier transform of two variable function $F(k_x,k_y)=e^{ikz} e^{-ik_\rho ^2 z /2k}$

1 vote
0 answers
59 views

Fourier transform involving a delta function [duplicate]

1 vote
1 answer
228 views

Fourier transform involving a dirac delta function

0 votes
1 answer
2k views

Determinant of rank-2 tensor expression

0 votes
0 answers
35 views

Partial differential of multivariable function

0 votes
1 answer
29 views

Method to solve as system of PDE in this form

0 votes
0 answers
42 views

How to integrate a differential equation of the following form

0 votes
0 answers
49 views

General solution to a tensor equation of this form?

0 votes
1 answer
38 views

Approximation scheme for integrating small differentials?

0 votes
0 answers
56 views

Approximating a function which has small derivatives

0 votes
1 answer
102 views

Dividing up gold bars