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Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki, 2007, Volume 47, Number 8, Pages 1340–1349
(Mi zvmmf262)
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This article is cited in 6 scientific papers (total in 6 papers)
The second Hamiltonian structure for a special case of the Lotka–Volterra equations
Yu. V. Bibik Computing Center, Russian Academy of Sciences, ul. Vavilova 40, Moscow, 119991, Russia
Abstract:
A special case of the Lotka–Volterra equations is considered for which it is possible to find the second Hamiltonian structure that is complementary to the known one. The form of the new Hamiltonian makes it possible to solve the equations by quadratures, which is the main feature of the case under examination. As a consequence, the period can also be represented by quadratures. In terms of the new variables, the equations of motion admit a mechanical analogy with the oscillations of a mass on a nonlinear spring.
Key words:
Lotka–Volterra equations, Hamiltonian structure, integrability by quadratures.
Received: 04.04.2006 Revised: 28.12.2006
Citation:
Yu. V. Bibik, “The second Hamiltonian structure for a special case of the Lotka–Volterra equations”, Zh. Vychisl. Mat. Mat. Fiz., 47:8 (2007), 1340–1349; Comput. Math. Math. Phys., 47:8 (2007), 1285–1294
Linking options:
https://www.mathnet.ru/eng/zvmmf262 https://www.mathnet.ru/eng/zvmmf/v47/i8/p1340
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