List questions from mathematical-physics

Published on 09 Apr 2026 - 17:44

45

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Range of values for $\frac{\langle f | \mathbf n \cdot \boldsymbol \sigma |f \rangle}{\langle f | f \rangle}$, with $|\mathbf n| = 1$?

Published on 15 Apr 2026 - 10:39

94

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Hermitian and Observables

Published on 13 Apr 2026 - 11:11

89

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Finite Coulomb energy implies potential level sets enclose finite volume?

Published on 17 Apr 2026 - 10:02

116

Views

Physical theories and Mathematics

Published on 09 Apr 2026 - 17:45

266

Views

Phase portrait of the simple pendulum. How much time does it take to get from one unstable equilibrium to the other?

Published on 16 Apr 2026 - 7:19

58

Views

Integrability of Euler top

Published on 25 Mar 2026 - 14:21

569

Views

Dimensionless form of the ODE for a simple pendulum with forcing and damping

Published on 15 Apr 2026 - 14:24

81

Views

FitzHugh- Nagumo Model conversion into state space

Published on 15 Apr 2026 - 4:38

37

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An Estimation of Poisson Equation

Published on 10 Apr 2026 - 14:36

27

Views

On the inputs for Dynamic mode decomposition

Published on 16 Apr 2026 - 2:20

40

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Implications from the form of Binnet equation

Published on 13 Apr 2026 - 20:03

28

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On the value of the integral of an exponential complex function on $[0,+\infty]$ related to quantum mechanics

Published on 13 Apr 2026 - 3:57

32

Views

Calculating Lie algebra representation in coherent state basis from Kaehler potential

Published on 12 Apr 2026 - 16:57

57

Views

Derivative of $f(x) := \min(H(a+x),H(b-x))$ in the sense of distributions (Schwarz)

Published on 14 Apr 2026 - 7:50

List Question

Cannot solve step function problem in Boas mathematical physics.

Range of values for $\frac{\langle f | \mathbf n \cdot \boldsymbol \sigma |f \rangle}{\langle f | f \rangle}$, with $|\mathbf n| = 1$?

Hermitian and Observables

Finite Coulomb energy implies potential level sets enclose finite volume?

Physical theories and Mathematics

Phase portrait of the simple pendulum. How much time does it take to get from one unstable equilibrium to the other?

Integrability of Euler top

Dimensionless form of the ODE for a simple pendulum with forcing and damping

FitzHugh- Nagumo Model conversion into state space

An Estimation of Poisson Equation

On the inputs for Dynamic mode decomposition

Implications from the form of Binnet equation

On the value of the integral of an exponential complex function on $[0,+\infty]$ related to quantum mechanics

Calculating Lie algebra representation in coherent state basis from Kaehler potential

Derivative of $f(x) := \min(H(a+x),H(b-x))$ in the sense of distributions (Schwarz)

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