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Hiro
  • Member for 5 years, 7 months
  • Last seen more than a month ago
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question
5
Prove that $K \ast f \in W^{1,\infty}(\mathbb R)$ if $K \in BV(\mathbb R)$
Jan 9, 2021
question
3
A special approximation of the Heaviside function
Jan 25, 2021
question
2
Kolmogorov $\epsilon$-entropy, $n$-width, and $\epsilon$-capacity and applications
Oct 16, 2022
question
1
Computing the fractional Laplacian of power function
May 22, 2020
question
1
Is $(f \ast K)'' \in L^1(\mathbb R)$ for $f \in L^1 \cap L^\infty(\mathbb R)$ and $K \in BV(\mathbb R)$?
Jan 9, 2021
question
1
Functions such that $ \Vert\tfrac{d^4}{dx^4}f\Vert_{L^2(0,1)} < \sqrt{2} \Vert f \Vert_{L^1(0,1)}$
Jan 25, 2021
question
1
Series and solution of $-\Delta u + \lambda u = f(x)$
Feb 17, 2021
question
1
How can I prove that $(I+\lambda G)$ is invertible, where $G$ is the Green function of an elliptic operator?
Feb 22, 2021
question
1
Uniform bound on the measure of $\Omega_\delta = \Omega \cap \delta\mathbb Z^d$ if $\Omega$ is an open bounded set with Lipschitz boundary
Oct 16, 2022
question
0
$L^p$ estimate for perturbed heat equation
Dec 6, 2020