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Mathematics
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Juan's user avatar
Juan's user avatar
Juan
  • Member for 3 years, 4 months
  • Last seen more than a month ago
  • Valencia, Spain
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Math Graduate

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question
4
Prove that $\lim_{(x,y) \to (x_0,0)} \frac{1-e^{-xy}}{y} = x_0$
May 13, 2023
question
3
Find the general solution for the PDE $u_{xx}(x,y)+yu_x(x,y)=0$, $u$ is $C^2$
Mar 8, 2023
answer
2
Prove that Fourier basis is maximal orthonormal set in real L2
Apr 5, 2023
question
1
Limit of a definite nonelementary integral
May 4, 2021
question
1
If the infinite sum of the norms $||f_n||$ converges then $\sum f_n$ converges to some $f \in \mathcal{L}_2(\Omega)$
Feb 13, 2023
question
1
Prove that Fourier basis is maximal orthonormal set in real L2
Apr 4, 2023
question
1
Finding initial conditions such that the formal solution of Laplace equation doesn't converge
May 9, 2023
question
1
Prove that $\lim_n \frac{\cosh (ny) \sin(nx)}{n^3}$ diverges for all $x, y \neq 0$ [duplicate]
May 14, 2023
question
1
Where to find proof for the remainder formula of the interpolation in two variables
Feb 20
answer
1
Finding initial conditions such that the formal solution of Laplace equation doesn't converge
May 9, 2023