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Si-Qi Liu
Researcher at Tsinghua University
Publications - 35
Citations - 1077
Si-Qi Liu is an academic researcher from Tsinghua University. The author has contributed to research in topics: Frobenius manifold & Integrable system. The author has an hindex of 11, co-authored 28 publications receiving 980 citations.
Papers
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Journal ArticleDOI
A Two-component Generalization of the Camassa-Holm Equation and its Solutions
Ming Chen,Si-Qi Liu,Youjin Zhang +2 more
TL;DR: An explicit reciprocal transformation between a two-component generalization of the Camassa-Holm equation, called the 2-CH system, and the first negative flow of the AKNS hierarchy is established in this paper.
Journal ArticleDOI
A 2-Component Generalization of the Camassa-Holm Equation and Its Solutions
Ming Chen,Si-Qi Liu,Youjin Zhang +2 more
TL;DR: An explicit reciprocal transformation between a 2-component generalization of the Camassa-Holm equation, called the 2-CH system, and the first negative flow of the AKNS hierarchy is established in this paper.
Journal ArticleDOI
Deformations of semisimple bihamiltonian structures of hydrodynamic type
Si-Qi Liu,Youjin Zhang +1 more
TL;DR: In this paper, the authors classify infinitesimal quasitrivial deformations of semisimple bihamiltonian structures of hydrodynamic type, and classify them into three classes:
Journal ArticleDOI
Frobenius Manifolds and Central Invariants for the Drinfeld - Sokolov Bihamiltonian Structures
TL;DR: In this paper, the complete sets of invariants of the related bihamiltonian structures with respect to the group of Miura-type transformations are computed for affine Lie algebras.
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On quasi-triviality and integrability of a class of scalar evolutionary PDEs
Si-Qi Liu,Youjin Zhang +1 more
TL;DR: For a certain class of perturbations of the equation u t = f ( u ) u x, this article proved the existence of change of coordinates, called quasi-Miura transformations, that reduce these perturbed equations to the unperturbed one.