43 citations · 169 across the 15 of their papers we have counts for
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math.DS2013
Liouvillian integrability of polynomial differential systems
Xiang Zhang
M.F. Singer [Liouvillian first integrals of differential equations, Trans. Amer. Math. Soc. 333 (1992), 673--688] proved the equivalence between Liouvillian integrability and Darbo…
math.AP2013★ 1 cited
Sharp global regularity for the 2+1-dimensional equivariant Faddeev model
Dan-Andrei Geba, Kenji Nakanishi, Xiang Zhang
The aim of this article is to prove that for the 2+1-dimensional equivariant Faddeev model, which is a quasilinear generalization of the corresponding nonlinear sigma model, small…