New posts in Differential Operators

"Natural" proof of $P\left(\frac{d}{dx}\right)\bigl(e^{xy}Q(x)\bigr)=Q\left(\frac{d}{dy}\right)\bigl(e^{xy}P(y)\bigr)$.

About the closedness of $\frac d{dx}$ operator

How to look at the Lie derivative as a partial differential operator?

How to compute one-parameter group and corresponding vector fields

What is the meaning of $1/(D+a)$, where $D$ is the derivative operator?

Selfadjointness of Coulomb Hamiltonian in $d\geq3$ dimensions

Definition of the principal symbol of a differential operator on a real vector bundle.

Composition of pseudo-differential operators

Transpose of the differential operator

Is the kernel of the product of two commuting differential operators the sum of the kernels?