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

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
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
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
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
4 votes
Accepted

When does a Lagrangian dynamical system have an equivalent Hamiltonian description?

Here's what I have done: $\bullet$ Let the Lagrangian $L(q_{i},\dot{q}_{i},t)$, which under the point transformations $$ \{q_{i}\}\leftrightsquigarrow\{Q_{i}\} $$ given by the invertible relations $ …
Konstantinos Kanakoglou's user avatar
6 votes
Accepted

Representation of Heisenberg-Weyl elements and their exponentials

The Heisenberg-Weyl algebra or the Weyl algebra or the algebra of the Canonical Commutation Relations (CCR) is generated by the $p,q$ generators subject to the relation $$ [q, p] = i \hbar I \ \ \ \ …
Konstantinos Kanakoglou's user avatar
3 votes

Geometric or conceptual way to understand supersymmetry algebra

If you are looking for geometric-algebraic interpretations of supersymmetric field theories, then non-commutative geometry -in the sense of A. Connes- seems to be the natural playground. There has bee …
Konstantinos Kanakoglou's user avatar
23 votes
Accepted

Is there any published physics article where $q$-mathematics is applied?

There has been quite a lot of literature on the applications of $q$-numbers, $q$-derivatives, $q$-deformations, etc, of various algebraic models of physics. Such applications range from $q$-deformatio …
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
7 votes

What is the relation between BRST quantization and gauge fixing quantization

I do not think that it makes sense to say that the gauge-fixing is a special case of BRST quantization: $\rightarrow$ The gauge-fixing procedure is actually a normalization technique and it is utili …
Konstantinos Kanakoglou's user avatar
3 votes

Braided Hopf algebras and Quantum Field Theories

I think that -apart from the applications in CFT and TFT already mentioned in previous answers- one of the most fundamental applications of braided Hopf algebras (with both non-trivial and "calculable …
Konstantinos Kanakoglou's user avatar
3 votes

Weyl's Branching Rule for $SU(N)$-Setting

Maybe the following paper might prove helpful to your question: Masatoshi Yamazaki, Branching Diagram for Special Unitary Group SU(n), J. Phys. Soc. Jpn. 21, pp. 1829-1832 (1966)
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
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

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