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math.DG2015
Third order differential equations and local isometric immersions of pseudospherical surfaces
Tarcísio Castro Silva, Niky Kamran
The class of differential equations describing pseudospherical surfaces enjoys important integrability properties which manifest themselves by the existence of infinite hierarchies…
math.DG2015★ 1 cited
Local Isometric immersions of pseudo-spherical surfaces and evolution equations
Nabil Kahouadji, Niky Kamran, Keti Tenenblat
The class of differential equations describing pseudo-spherical surfaces, first introduced by Chern and Tenenblat [3], is characterized by the property that to each solution of a d…