Mixmaster model associated to a Borcherds algebra
- Authors: Pavlov A.E.1,2
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Affiliations:
- Bogoliubov Laboratory for Theoretical Physics
- Institute of Mechanics and Energetics
- Issue: Vol 23, No 1 (2017)
- Pages: 20-27
- Section: Article
- URL: https://journals.rcsi.science/0202-2893/article/view/176060
- DOI: https://doi.org/10.1134/S0202289317010157
- ID: 176060
Cite item
Abstract
The problem of integrability of the mixmaster model as a dynamical system with finite degrees of freedom is studied. The model belongs to the class of pseudo-Euclidean generalized Toda chains. It is presented as a quasi-homogeneous system after transformations of phase variables. Application of the method of getting Kovalevskaya exponents to the model leads to the generalized Adler–van Moerbeke formula for root vectors. A generalized Cartan matrix is constructed using simple root vectors inMinkowski space. The mixmaster model is associated to a Borcherds algebra. The known hyperbolic Kac–Moody algebra of the Chitre´ billiard model is obtained by using three spacelike root vectors.
About the authors
A. E. Pavlov
Bogoliubov Laboratory for Theoretical Physics; Institute of Mechanics and Energetics
Author for correspondence.
Email: alexpavlov60@mail.ru
Russian Federation, Joliot-Curie ul. 6, Dubna, 141980; Timiryazevskaya ul. 49, Moscow, 127550