List questions from differential-operators

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How to prove that inequality for every $f\in C^\infty_0(\Bbb{R})$.

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167

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describe ring of derivation of continuous map on manifold

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227

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Implicit Differentiation Doubt

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If a self-adjoint operator $A$ commutes with a bounded operator $B$, then $\ker B$ is contained in the domain of $A$

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Usage of the del operator $ \nabla $ as a vector.

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58

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The Laplacian operator of $\;{ {\zeta}_0}^2+{ {\zeta}_1}^2=1\;$

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125

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The algebra generated by derivations

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Is a Sturm-Liouville operator the only 2nd order linear differential operator that is self-adjoint/Hermitian?

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247

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Differential operator acting on a constant

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267

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Closed form/ meaning of sum of geometric series of operator exponentials

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78

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reference request: Invariant differential operators on the sphere

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41

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How to construct such sequence

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45

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Help in Finding Specific Solutions to Diff. Equations

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76

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Differential operators and rules for Ore polynomials

Published on 29 Apr 2026 - 12:52

List Question

Why is the differential operator equal to an integer in the case of trignometric equations?

How to prove that inequality for every $f\in C^\infty_0(\Bbb{R})$.

describe ring of derivation of continuous map on manifold

Implicit Differentiation Doubt

If a self-adjoint operator $A$ commutes with a bounded operator $B$, then $\ker B$ is contained in the domain of $A$

Usage of the del operator $ \nabla $ as a vector.

The Laplacian operator of $\;{ {\zeta}_0}^2+{ {\zeta}_1}^2=1\;$

The algebra generated by derivations

Is a Sturm-Liouville operator the only 2nd order linear differential operator that is self-adjoint/Hermitian?

Differential operator acting on a constant

Closed form/ meaning of sum of geometric series of operator exponentials

reference request: Invariant differential operators on the sphere

How to construct such sequence

Help in Finding Specific Solutions to Diff. Equations

Differential operators and rules for Ore polynomials

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