Bazin's user avatar
Bazin's user avatar
Bazin's user avatar
Bazin
  • Member for 12 years
  • Last seen this week
2 votes

Does the union of fractional Sobolev spaces fills $L^p$?

3 votes

How to understand the unique continuation result

1 vote

$L^\infty$ estimate for elliptic PDE with mixed boundary conditions

0 votes

Can gradient zero implies that a function is constant with Hörmander vector fields

2 votes

Distributional derivatives are locally integrable implies the distribution is also locally integrable?

0 votes

A variant of Hardy's inequality for "convolutions"?

7 votes

PDEs and algebraic varieties

3 votes

Characterization of locality in Fourier multiplier

1 vote

$L^p$ boundedness for pseudo-differential operators

3 votes

What happens if we consider functions of bounded variation that are not in $L^1$?

2 votes
Accepted

Fourier transforms of homogeneous functions

4 votes
Accepted

Differential operators in $\Bbb R^n$

5 votes

Hörmander’s propagation of singularities in two variables

4 votes
Accepted

Closed formula for Hermite polynomials

0 votes

How to numerically solve differential equations involving sines, cosines and inverses of the unknown function?

1 vote
Accepted

Viscosity characterization of convex functions

0 votes

Reverse estimate on the Riesz potential $I_\alpha : L^{n/\alpha}\to \mathrm{BMO}$

2 votes
Accepted

Given a compact set $K \subset \mathbb{R}^n$, is the space of distributions supported on $K$ the dual of some test function space?

1 vote

Is $f^{-a}$ locally integrable if $f\geq 0$ has a unique stationary point ( a minimum) at which the Hessian is positive definite, $0<a<d/2$

1 vote

Symbol estimates using metric on the phase space

3 votes

Is square of Delta function defined somewhere?

1 vote

Riemann-Liouville integral of $f$ is zero implies $f =0$ a.e

3 votes

Singular support: equivalent definition

5 votes

Pseudo-differential operators and differential operator

3 votes

Generalization of a bounded variation

2 votes
Accepted

Why complex conjugate in definition of the Fourier transform?

1 vote

The boundedness of $L_1$ norm $\|(I+A)^{-1}\|_1$ if both $\|A\|_1$ and $\|A^{-1}\|_1$ are bounded

1 vote

If d/dx is an operator, on what does it operate?

7 votes

Symmetric version of Hilbert's seventeenth problem?

0 votes

Positive definiteness of a matrix-valued function

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