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On integrability of the Yang–Baxter -model
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11.In Ref. 6, there is a minus sign in front of the last term in the right hand side of Eq. (2.10). This circumstance reflects the fact that there are three nonequivalent versions of the Yang–Baxter operator: the one introduced in Ref. 6, the one discussed here, and yet another one (called triangular) where the last term in the right hand side of Eq. (2.10) is simply absent.
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