The Heun Equation and Generalized Sl(2) Algebra


Authors

J. Sadeghi - Department of Physics, Islamic Azad University, Ayatollah Amoli Branch, P. O. Box 678, Amol, Iran. A. Vaezi - Department of Mathematics, University of Mazandaran, P. O. Box 95447, Babolsar, Iran. F. Larijani - Department of Physics, Islamic Azad University, Ayatollah Amoli Branch, P. O. Box 678, Amol, Iran.


Abstract

In this paper, first we introduce the Heun equation. In order to solve such equation we show the generators of generalized \(sl(2)\). Second, we arrange the Heun equation in terms of new operators formed of generalized \(sl(2)\) generators and it's commutator relation. Here, instead of \(J^+(r), J^-(r)\) and \(J^0\) we use the \(P^+(r), P^-(r)\) and \(P^0(r)\) as operators of generalized sl(2) algebra. This correspondence gives us opportunity to arrange the parameters \(\alpha\) and \(\beta\) in \(P^0(r)\). Also, the commutator of such operators leads us to have generalized \(sl(2)\) algebra. Also, we obtain the Casimir operators and show that it corresponds to \(P^+, P^-\) and some constants. These operators lead to deform the structure of generalized \(sl(2)\) algebra in the Heun equation. Finally, we investigate the condition for exactly and quasi-exactly solvable system with constraint on the corresponding operators \(P^+\) and \(P^-\).


Share and Cite

  • Share on Facebook
  • Share on Twitter
  • Share on LinkedIn
ISRP Style

J. Sadeghi, A. Vaezi, F. Larijani, The Heun Equation and Generalized Sl(2) Algebra, Journal of Mathematics and Computer Science, 16 (2016), no. 1, 77-80

AMA Style

Sadeghi J., Vaezi A., Larijani F., The Heun Equation and Generalized Sl(2) Algebra. J Math Comput SCI-JM. (2016); 16(1):77-80

Chicago/Turabian Style

Sadeghi, J., Vaezi, A., Larijani, F.. "The Heun Equation and Generalized Sl(2) Algebra." Journal of Mathematics and Computer Science, 16, no. 1 (2016): 77-80


Keywords


References