List questions from mathematical-physics

Published on 11 Apr 2026 - 5:55

65

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Let $\mathcal{H}$ be the Schrödinger operator. Why is $u(x,t)\xrightarrow{t\to\pm\infty} 0\iff\sigma_p(\mathcal{H})=\emptyset$?

Published on 01 Apr 2026 - 22:49

60

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Parabloid Bubble

Published on 16 Jul 2017 - 23:21

252

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In what sense does a hyperbolic space have more information capacity than an Euclidean one?

Published on 26 Mar 2026 - 11:17

65

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How to choose a magnetic field $B$ for Schrodinger equation?

Published on 10 Apr 2026 - 5:02

759

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Green's function for the Laplace equation: why it is not zero?

Published on 11 Apr 2026 - 16:29

1k

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Partial Derivatives and Physics meaning

Published on 10 Apr 2026 - 12:42

187

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Does the Dirac belt trick work in higher dimensions? (v 2.0)

Published on 04 Apr 2026 - 2:28

241

Views

QFT, action, EoM, mass of particle, on-shell

Published on 26 Mar 2026 - 14:19

143

Views

Must all functionals be integrals and all path integrals over functions of functionals?

Published on 26 Jul 2017 - 11:42

63

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Coulomb terms of Thomas Fermi model is a symmetric decreasing function

Published on 11 Apr 2026 - 16:57

77

Views

What's wrong in this "counterexample" of the Moyal´s product associativity?

Published on 11 Apr 2026 - 12:34

169

Views

What's the correct analog of the (damped) spring for SO(3)/quaternions?

Published on 03 Apr 2026 - 12:55

298

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The integral under the variation $\delta$ sign

Published on 11 Apr 2026 - 18:56

1k

Views

Noether's Theorem proof

Published on 01 Apr 2026 - 22:35

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What are some good books of math applied to the military, warfare and combat.

Let $\mathcal{H}$ be the Schrödinger operator. Why is $u(x,t)\xrightarrow{t\to\pm\infty} 0\iff\sigma_p(\mathcal{H})=\emptyset$?

Parabloid Bubble

In what sense does a hyperbolic space have more information capacity than an Euclidean one?

How to choose a magnetic field $B$ for Schrodinger equation?

Green's function for the Laplace equation: why it is not zero?

Partial Derivatives and Physics meaning

Does the Dirac belt trick work in higher dimensions? (v 2.0)

QFT, action, EoM, mass of particle, on-shell

Must all functionals be integrals and all path integrals over functions of functionals?

Coulomb terms of Thomas Fermi model is a symmetric decreasing function

What's wrong in this "counterexample" of the Moyal´s product associativity?

What's the correct analog of the (damped) spring for SO(3)/quaternions?

The integral under the variation $\delta$ sign

Noether's Theorem proof

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