Conserved quantities for integrable chiral equations in 2+1 dimensions
arXiv:solv-int/9510005 · doi:10.1016/0375-9601(95)00781-W
Abstract
The integrable (2+1)-dimensional chiral equations are related to the self-dual Yang-Mills equation. Previously-known nonlocal conservation laws do not yield finite conserved charges, because the relevant spatial integrals diverge. We exhibit infinite sequences of conserved quantities that do exist, and have a simple explicit form.
10 pages, plainTeX, to appear in Physics Letters A
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