List questions from differential-operators

Published on 15 Mar 2026 - 17:20

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Vector operator of second derivatives?

Published on 15 Mar 2026 - 20:34

235

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The $n^{th}$ derivative in change of variable

Published on 16 Mar 2026 - 6:13

322

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Finding a potential function for $\vec F=\frac{-y}{x^2+y^2}\vec i+\frac{x}{x^2+y^2}\vec j$ on $\Omega=\mathbb{R}^2- \{(x,y)\,|\,y=0,\,x\geq0 \}$

Published on 16 Mar 2026 - 6:33

168

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Beach-ball like differential operators of a two-dimensional function

Published on 15 Mar 2026 - 20:45

2k

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How to do the curl of the product of a function and a vector field

Published on 21 May 2019 - 17:18

142

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Prove two operators commute and a further question

Published on 15 Mar 2026 - 12:59

1.7k

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Show differential operator is not bounded using definition of bounded operators

Published on 16 Mar 2026 - 0:36

37

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Differential operator with dependence on differentiation variable

Published on 15 Mar 2026 - 16:20

455

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Sturm-Liouville problem with regular-singular point in the interval

Published on 16 Mar 2026 - 2:47

155

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Characteristic curves of operators (example)

Published on 16 Mar 2026 - 3:07

145

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Conserved quntities from Lax pair in case of differential operators

Published on 21 Mar 2026 - 21:50

924

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"Square root" of a derivative operator?

Published on 16 Mar 2026 - 2:46

677

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Second order derivatives: Exterior and Lie

Published on 16 Mar 2026 - 6:09

127

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Is true the following assertion?

Published on 16 Mar 2026 - 6:54

List Question

Solution of $\left(D^2+1\right)y=\sin x$ by partial fractions and direct formula

Vector operator of second derivatives?

The $n^{th}$ derivative in change of variable

Finding a potential function for $\vec F=\frac{-y}{x^2+y^2}\vec i+\frac{x}{x^2+y^2}\vec j$ on $\Omega=\mathbb{R}^2- \{(x,y)\,|\,y=0,\,x\geq0 \}$

Beach-ball like differential operators of a two-dimensional function

How to do the curl of the product of a function and a vector field

Prove two operators commute and a further question

Show differential operator is not bounded using definition of bounded operators

Differential operator with dependence on differentiation variable

Sturm-Liouville problem with regular-singular point in the interval

Characteristic curves of operators (example)

Conserved quntities from Lax pair in case of differential operators

"Square root" of a derivative operator?

Second order derivatives: Exterior and Lie

Is true the following assertion?

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