List questions from differential-operators

Published on 22 Mar 2026 - 5:28

381

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When an Hilbert–Schmidt operator is invertible? How to construct the kernel of the inverse?

Published on 23 Mar 2026 - 8:25

53

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Is the algebra of differential operators of finite degree globally generated by the operators of degree at most $1$?

Published on 22 Mar 2026 - 10:10

188

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Green's function for $2^\text{nd}$ order PDE

Published on 22 Mar 2026 - 17:05

172

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Why de Rham complex is a complex of D-modules?

Published on 22 Mar 2026 - 16:33

85

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Unitary Operator on infinitely differentiable function

Published on 22 Mar 2026 - 8:43

53

Views

Is it correct to write $\nabla\times(\nabla\times\textbf{E})$ as $\nabla\times(\nabla\times)\cdot\textbf{E}$?

Published on 22 Mar 2026 - 5:26

492

Views

When does differentiation commute with convolution with an approximate identity?

Published on 21 Mar 2026 - 21:42

146

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eigenvalue differential operator

Published on 22 Mar 2026 - 14:57

265

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Exponential operator acting on a product of functions

Published on 22 Mar 2026 - 16:34

1k

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

Published on 22 Mar 2026 - 15:26

73

Views

On constant-coefficient linear homogenous ODE

Published on 22 Mar 2026 - 2:27

82

Views

Differentiability of $L_A(X)=AX$

Published on 22 Mar 2026 - 7:33

102

Views

Tricky question involving finding a relation between the time derivative of an operator and a commutator of two operators

Published on 21 Mar 2026 - 22:08

132

Views

How to compute gradient of complicated scalar function ( limit and iteration)?

Published on 21 Mar 2026 - 17:14

List Question

Is there such subsequence in $L^2(\Bbb{R}^2)$.

When an Hilbert–Schmidt operator is invertible? How to construct the kernel of the inverse?

Is the algebra of differential operators of finite degree globally generated by the operators of degree at most $1$?

Green's function for $2^\text{nd}$ order PDE

Why de Rham complex is a complex of D-modules?

Unitary Operator on infinitely differentiable function

Is it correct to write $\nabla\times(\nabla\times\textbf{E})$ as $\nabla\times(\nabla\times)\cdot\textbf{E}$?

When does differentiation commute with convolution with an approximate identity?

eigenvalue differential operator

Exponential operator acting on a product of functions

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

On constant-coefficient linear homogenous ODE

Differentiability of $L_A(X)=AX$

Tricky question involving finding a relation between the time derivative of an operator and a commutator of two operators

How to compute gradient of complicated scalar function ( limit and iteration)?

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