Nonintegrability of (2+1)-dimensional continuum isotropic Heisenberg spin system: Painlevé analysis

C. Senthil Kumar, M. Lakshmanan, B. Grammaticos +1

While many integrable spin systems are known to exist in (1+1) and (2+1) dimensions, the integrability property of the physically important (2+1) dimensional isotropic Heisenberg f…