Liu, Si-Qi; Yang, Di; Zhang, Youjin.
Uniqueness theorem of $\mathcal{W}$-constraints for simple singularities.
Lett. Math. Phys. 103 (2013), 1329--1345.
(arXiv)(Journal)
Fu, Yulong; Liu, Si-Qi; Zhang, Youjin; Zhou, Chunhui.
Proof of a conjecture on the genus two free energy associated to the $A_n$ singularity.
J. Geom. Phys. 76 (2014), 10--24.
(arXiv)(Journal)
Liu, Si-Qi; Zhang, Youjin.
Bihamiltonian cohomologies and integrable hierarchies I: a special case.
Comm. Math. Phy. 324 (2013), 897--935.
(arXiv)(Journal)
Dubrovin, Boris; Liu, Si-Qi; Zhang, Youjin.
On the genus two free energies for semisimple Frobenius manifolds.
Russ. J. Math. Phys. 19 (2012), 273--298.
(arXiv)(Journal)
Liu, Si-Qi; Xu, Dingdian; Zhang, Youjin.
The inversion symmetry of the WDVV equations and tau functions.
Phys. D 241 (2012), 2168--2177.
(arXiv)(Journal)
Liu, Si-Qi; Wu, Chao-Zhong; Zhang, Youjin.
On the Drinfeld-Sokolov hierarchies of $D$ type.
Int. Math. Res. Not. IMRN 2011, 1952--1996.
(arXiv)(Journal)
Chen, Ming; Liu, Si-Qi; Zhang, Youjin.
Hamiltonian structures and their reciprocal transformations for the $r$-KdV-CH hierarchy.
J. Geom. Phys. 59 (2009), 1227--1243.
(arXiv)(Journal)
Liu, Si-Qi; Wu, Chao-Zhong; Zhang, Youjin.
On properties of Hamiltonian structures for a class of evolutionary PDEs.
Lett. Math. Phys. 84 (2008), 47--63.
(arXiv)(Journal)
Dubrovin, Boris; Liu, Si-Qi; Zhang, Youjin.
Frobenius manifolds and central invariants for the Drinfeld-Sokolov bihamiltonian structures.
Adv. Math. 219 (2008), 780--837.
(arXiv)(Journal)
Liu, Si-Qi; Zhang, Youjin.
On quasi-triviality and integrability of a class of scalar evolutionary PDEs.
J. Geom. Phys. 57 (2006), 101--119.
(arXiv)(Journal)
Chen, Ming; Liu, Si-Qi; Zhang, Youjin.
A two-component generalization of the Camassa-Holm equation and its solutions.
Lett. Math. Phys. 75 (2006), 1--15.
(arXiv)(Journal)
Dubrovin, Boris; Liu, Si-Qi; Zhang, Youjin.
On Hamiltonian perturbations of hyperbolic systems of conservation laws. I. Quasi-triviality of
bi-Hamiltonian perturbations.
Comm. Pure Appl. Math. 59 (2006), 559--615.
(arXiv)(Journal)
Liu, Si-Qi; Zhang, Youjin.
On the quasitriviality of deformations of bihamiltonian structures of hydrodynamic type.
Preprint arXiv: math/0406626.
(arXiv)
Liu, Si-Qi; Zhang, Youjin.
Deformations of semisimple bihamiltonian structures of hydrodynamic type.
J. Geom. Phys. 54 (2005), 427--453.
(arXiv)(Journal)