Construction of Lax Connections by Exponentiation [PDF]
Niklas Beisert, Florian LueckerWe propose a method for constructing the Lax connection of two-dimensional relativistic integrable sigma models on coset spaces by means of exponentiation of a suitable operator. We derive a simple quadratic relation that this operator must satisfy for an entire one-parameter family of connections to be flat.View original: http://arxiv.org/abs/1207.3325
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