SPLITTING OF THE SEPARATRICES AND THE NONEXISTENCE OF FIRST INTEGRALS IN SYSTEMS OF DIFFERENTIAL EQUATIONS OF HAMILTONIAN TYPE WITH TWO DEGREES OF FREEDOM
- 30 April 1988
- journal article
- Published by Steklov Mathematical Institute in Mathematics of the USSR-Izvestiya
- Vol. 31 (2) , 407-421
- https://doi.org/10.1070/im1988v031n02abeh001082