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Mathematical methods in classical mechanics, classical and quantum field theory, quantum mechanics, statistical mechanics, condensed matter, nuclear and atomic physics.

1 vote

Symplectic orbits in projective Hilbert spaces are simply connected

I do not have access to the article you are citing but I have made a little search and I think the answer to your question is yes (given that we are speaking about a non-compact, connected, semisimple …
LSpice's user avatar
  • 12.9k
5 votes
Accepted

Examples of particle systems with higher-order collisions

I understand that the OP's original focus is classical statistical mechanics. However, i think that the question is of interest from a more general viewpoint including the dynamical systems/integrabil …
Konstantinos Kanakoglou's user avatar
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 …
Konstantinos Kanakoglou's user avatar
13 votes

The Planck constant for mathematicians

About your Q1: I think that the simplest—and most obvious—way to think mathematically about the physical meaning of Planck's constant $h$ is that it is a kind of quantitative measure of the departure …
Konstantinos Kanakoglou's user avatar
2 votes

Practical example of Hamiltonian reduction

If i correctly understand your question, i think what you are talking about is the so called Poincare reduction method. This actually generalises Liouville integrability, in the sense that in the pres …
Konstantinos Kanakoglou's user avatar
11 votes

Limiting representation theory of quantum groups at roots of unity and $SL(2,\mathbb{C})$

This is a very interesting question. I have also made some search but i have not found this result explicitly mentioned somewhere in the literature. However, i remember i have heard such a claim in th …
Konstantinos Kanakoglou's user avatar
21 votes
Accepted

Why is the standard definition of a $(p, q)$-tensor so bizarre?

I think that the answer lies in the "educational culture" of physicists. Physicists are often used -well at least at the undergraduate level- to learn and perform complicated computations with abstra …
Konstantinos Kanakoglou's user avatar
5 votes
Accepted

Serre relations for Lie Superalgebras

The Serre relations (some authors also call them Serre-Chevalley relations) for the finite dimensional, complex, basic, classical, simple Lie superalgebras -in analogy with the Lie algebra case- rea …
Konstantinos Kanakoglou's user avatar
2 votes
Accepted

Solvable Lie algebra application

There are actually lots of applications of solvable Lie algebras, especially in the field of integrable systems where the solvabiltiy of Hamilton's equations of motion is frequently related to the so …
Konstantinos Kanakoglou's user avatar
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 …
Konstantinos Kanakoglou's user avatar
1 vote

Physical Applications of Locally Symmetric Spaces

Akshay Venkatesh has some application-oriented work: On quantum unique ergodicity for locally symmetric spaces, see also: Heat-kernel asymptotics of locally symmetric spaces of rank one and Chern-S …
Konstantinos Kanakoglou's user avatar
4 votes
Accepted

Is there another quantum deformation of sl(2)?

Regarding your second question, on other possible deformations of $sl(2)$: There have been various studies on (multi-parametric) deformations of Lie algebras -as has already been mentioned in the co …
Konstantinos Kanakoglou's user avatar
11 votes

Simple Subalgebras of Simple Lie Algebras

I am not sure if this is exactly what you are looking for, but there have been some classic works, developing general methods for such topics: In Dynkin, Semisimple subalgebras of semisimple Lie al …
Konstantinos Kanakoglou's user avatar
1 vote

Graph of a Lie super algebra

Classical, Simple, Complex, Lie superalgebras and Complex, Affine, Kac-Moody algebras and Complex, Kac-Moody Lie superalgebras have an associated graph -up to isomorphism- in the sense of a generalize …
Konstantinos Kanakoglou's user avatar
2 votes
Accepted

$P(1)$ strange type classical Lie superalgebras

$P(1)$ is not simple: To see why, consider the strange, type I, classical, simple, complex, LS $P(n)$, $n\geq 2$ realized as the set of complex, $(2n+2)\times(2n+2)$ matrices $\mathbf{M}$, with grad …
Konstantinos Kanakoglou's user avatar

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