R. Inoue et K. Hikami, THE HUNGRY-VOLTERRA MODEL - THE CLASSICAL AND QUANTUM INTEGRABLE STRUCTURES, Journal of the Physical Society of Japan, 67(1), 1998, pp. 87-92
An extension of the Lotka-Volterra model, which we call the hungry-Vol
terra model or the Bogoyavlensky lattice, is studied. We show that the
model is integrable in both classical and quantum levels by use of th
e local Lax matrix. The relationship between the Lotka-Volterra model
and some integrable systems is briefly discussed.