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nlin.SI2012★ 21 cited
Tau function of the CKP hierarchy and non-linearizable Virasoro symmetries
Liang Chang, Chao-Zhong Wu
We introduce a single tau function that represents the CKP hierarchy into a generalized Hirota "bilinear" equation. The actions on the tau function by additional symmetries for the…
nlin.SI2012★ 3 cited
Tau Functions and Virasoro Symmetries for Drinfeld-Sokolov Hierarchies
Chao-Zhong Wu
For each Drinfeld-Sokolov integrable hierarchy associated to affine Kac-Moody algebra, we obtain a uniform construction of tau function by using tau-symmetric Hamiltonian densities…