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Top Questions
10
votes
When is separation of variables possible?
pde
spherical-coordinates
hamilton-jacobi-equation
asked Jun 20 '14 at 14:34
math.stackexchange.com
10
votes
How to calculate the PSD of a stochastic process
fourier-analysis
stochastic-calculus
brownian-motion
asked Feb 9 '16 at 16:58
math.stackexchange.com
9
votes
Exit time of a stochastic process defined by a SDE
reference-request
stochastic-processes
stochastic-calculus
stochastic-integrals
sde
asked Jun 7 '18 at 15:52
math.stackexchange.com
9
votes
Lower bound of Euler phi function times sum of divisors
number-theory
inequality
totient-function
arithmetic-functions
asked Dec 10 '14 at 20:01
math.stackexchange.com
7
votes
General relativity in terms of differential forms
general-relativity
differential-geometry
tensor-calculus
asked Dec 31 '13 at 0:26
physics.stackexchange.com
7
votes
Decimal mark in a filename
standards
filenames
asked Feb 11 '16 at 8:53
stackoverflow.com
5
votes
Biography of L. Euler
reference-request
asked Jun 15 '15 at 0:04
hsm.stackexchange.com
Top Answers
7
Area of a circle $\pi r^2$
math.stackexchange.com
6
Is $\nabla\cdot{F} = F\cdot\nabla$?
math.stackexchange.com
6
Does the identity element of a group have an inverse?
math.stackexchange.com
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