Abstract
A recently observed relation between ‘weakly nonassociative’ algebras\(\mathbb{A}\) (for which the associator (\(\mathbb{A},\mathbb{A}^2 ,\mathbb{A}\)) vanishes) and the KP hierarchy (with dependent variable in the middle nucleus\(\mathbb{A}\)′ of {\(\mathbb{A}\)) is recalled. For any such algebra there is a nonassociative hierarchy of ODEs, the solutions of which determine solutions of the KP hierarchy. In a special case, and with matrix algebra\(\mathbb{A}\)′, this becomes a matrix Riccati hierarchy which is easily solved. The matrix solution then leads to solutions of the scalar KP hierarchy. We discuss some classes of solutions obtained in this way.
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Dimakis, A., Müller-Hoissen, F. From nonassociativity to solutions of the KP hierarchy. Czech J Phys 56, 1123–1130 (2006). https://doi.org/10.1007/s10582-006-0412-z
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DOI: https://doi.org/10.1007/s10582-006-0412-z