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Quiet_waters
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13
Prime divisors of the sequence terms $a_n=a\cdot 2017^n+b\cdot 2016^n$
Aug 27, 2018
11
An angle inside a regular pentagon
Feb 7, 2020
10
Solving a simple Shallow Water model
Jun 27, 2019
9
Are characteristics of $u_t+f(u)_x=0$ always straight lines?
May 14, 2019
8
Find all functions such that $f(x^2+y^2f(x))=xf(y)^2-f(x)^2$
Nov 1, 2018
8
Burgers' equation - Integrate discontinuity over rectangle
Apr 30, 2019
8
$\frac{\partial F}{\partial y}\neq0\implies$ continuous contour line? (Implicit Function Theorem)
Sep 17, 2020
6
Polynomial $f(x)$ such that $\dfrac{f(k)-f(m)}{k-m}\in\mathbb{Z}$
Oct 4, 2018
6
Prove that shock wave is weak solution of Burgers' equation (Riemann problem)
Apr 16, 2019
5
Center and radius of the osculating circle - The limiting position of a circle trough three points
Sep 12, 2019
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5
Trying to model a simple second order ODE