Non-commutative generalization of integrable quadratic ODE systems
Abstract
We find all homogeneous quadratic systems of ODEs with two dependent variables that have polynomial first integrals and satisfy the Kowalevski-Lyapunov test. Such systems have infinitely many polynomial infinitesimal symmetries. We describe all possible non-commutative generalizations of these systems and their symmetries. As a result, new integrable quadratic homogeneous systems of ODEs with two non-commutative variables are constructed. Their integrable non-commutative inhomogeneous generalizations are found. In particular, a non-commutative generalization of a Hamiltonian flow on the elliptic curve is presented.
- Publication:
-
Letters in Mathematical Physics
- Pub Date:
- October 2019
- DOI:
- 10.1007/s11005-019-01229-0
- arXiv:
- arXiv:1807.05583
- Bibcode:
- 2019LMaPh.110..533S
- Keywords:
-
- Non-commutative ODEs;
- Integrability;
- Symmetries;
- Painlevé test;
- Nonlinear Sciences - Exactly Solvable and Integrable Systems;
- 37K10;
- 34M55
- E-Print:
- 19 pages