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For questions about mathematical problems arising from physics, the natural science studying general properties of matter, radiation and energy.
13
votes
The Planck constant for mathematicians
In this sense, the most familiar noncommutative object in physics is the algebra of canonical commutation relations CCRs: $[x,p]=i\hbar\mathbf{1}$, which comes in place of the Poisson bracket of canonical … About your Q2: On the side of physics, the value of $h$ comes from Planck's interpretation of black-body radiation. …
3
votes
Accepted
Legendre equation: An interpretation
I am not sure if this is the qualitative/geometric interpretation -of the integrality of the $l$ parameter- you are looking for, but if the parameter $l$ is a non-negative integer then the Legendre po …
1
vote
Sufficient conditions for unitarity of a representation of a Lie Superalgebra
If i have correctly understood your question, i think that the answer can be found at
M. D. Gould, R. B. Zhang, Classification of all star and grade star irreps of gl(n|1), J. of Math. Phys., 31, 15 …