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Exact Poisson pencils, $\tau$-structures and topological hierarchies
Dubrovin-Zhang’s perturbative integrable evolutionary PDEs
2011/7/5
We discuss, in the framework of Dubrovin-Zhang’s perturbative approach
to integrable evolutionary PDEs in 1+1 dimensions, the role of a special class
of Poisson pencils, called exact Poisson pencils...