Literature Cited
A. Artikbaev and D. D. Sokolov,Geometry in the Large in the Space-Time Plane [in Russian], Fan, Tashkent (1991).
A. Barone and G. Paterno,The Josephson Effect [Russian translation], Mir, Moscow (1984).
I. N. Vekua, “Remarks on the properties of solution of the equation Δ2=-2KE u,”Sib. Mat. Zh.,1, No. 3, 331–342 (1960).
F. Galogero and A. Degasperis,Spectral Transform and Solitons [Russian translation], Mir, Moscow (1985).
G. L. Lamb,An Introduction to Soliton Theory [Russian translation], Mir, Moscow (1983).
V. S. Malakhovskii,An Introduction to the Theory of Exterior Forms [in Russian], Kaliningrad University Press, Kaliningrad (1980).
É. G. Posnyak and A. G. Popov, “The geometry of the sine-Gordon equation,” In:Problemy Geometrii, Vol. 23,Itogi Nauki i Tekhn., All-Union Institute for Scientific and Technical Information (VINITI), Akad. Nauk SSSR, Moscow (1991), pp. 99–130.
É. G. Poznyak and A. G. Popov,The sine-Gordon Equation: Geometry and Physics [in Russian], Znanie, Moscow (1991).
É. G. Poznyak and A. G. Popov, “Lobachevski geometry and equations of mathematical physics,”Dokl. Akad. Nauk (Rossiisk.),332, No. 4, 41–421 (1993).
É. G. Poznyak and E. V. Shikin,Differential Geometry [In Russian], Mosk. Gos. Univ., Moscow (1990).
A. G. Popov, “The Chebyshev net as a geometrical invariant for evolutional equations,” In:All-Union Colloquium of Young Scientists on Differential Geometry Dedicated to the 80th Anniversary of the Birth of N. V. Efimov, Abstracts of Reports, Rostov-on-Don (1990), p. 25.
A. G. Popov, “A geometrical approach to the interpretation of solutions of the sine-Gordon equation,”Dokl. Akad. Nauk SSSR,312, No. 5, 1109–1111 (1990).
A. G. Popov, “The exact formulas for the construction of solutions of the Liouville equation Δ2υ=e u by solutions of the Laplace equation Δ2υ=0,”Dokl. Akad. Nauk (Rossiisk.),333, No. 4 (1993).
I. Kh. Sabitov, “A list of the central-symmetric forms of two-dimensional metrics of a constant curvature,” In:International Conf. “Lobachevski and Modern Geometry,” Abstracts of Reports, Part I, Kazan' (1992), p. 87.
G. Favar,A Course of Local Differential Geometry [Russian translation], IL, Moscow (1960).
R. Beals, M. Rabelo, and K. Tenenblat, “Bäcklund transformations and inverse scattering for some pseudospherical surface equations,”Stud. Appl. Math.,81, 125–151 (1989).
F. Galogero and J. Xiaoda, “C-integrable partial differential equations. I,”J. Math. Phys.,32, No. 4, 875–887 (1991).
F. Galogero and J. Xiaoda, “C-integrable PDEs. II,”J. Math. Phys.,32, No. 10, 2703–2717 (1991).
S. S. Chern and K. Tenenblat, “Pseudospherical surfaces and evolutional equations,”Stud. Appl. Math.,74, No. 1, 55–83 (1986).
M. Crampin and D. J. Saunders, “The sine-Gordon equations, Chebyshev nets, and harmonic maps,”Repts. Math. Phys.,23, No. 3, 327–340 (1986).
N. Kamran and K. Tenenblat, “On differential equations describing pseudo-spherical surfaces,”J. Differ. Equat. (in press).
H. Poincare, “Les fonctions Fuchsiennes et l'equation Δu=e u,”J. Math.,4, No. 5, 137–230 (1898).
M. Rabelo, “On evolution equations which describe a pseudospherical surfaces,”Stud. Appl. Math.,81, 221–248 (1989).
A. Sanchez and L. Vasquez, “Nonlinear wave propagation in disordered media,”Int. J. Mod. Phys.,B5, No. 18, 2825–2882 (1991).
R. Sasaki, “Geometrization of soliton equations,”Phys. Lett. A.,71, 390–392 (1979).
R. Sasaki, “Soliton equations and pseudospherical surfaces,”Nucl. Phys.,154, 343–357 (1979).
A. Sym, “Soliton surfaces,”Lett. Nuovo Cim.,33, No. 12, 394–400 (1982).
P. Chebyshev, “Sur la couple des vetements,” In:Assos. Fran., Geuvres II (1878).
Additional information
Translated from Itogi Nauki i Tekhniki, Seriya Sovremennaya Matematika i Ee Prilozheniya. Tematicheskie Obzory. Vol. 11, Geometry-2, 1994.
Rights and permissions
About this article
Cite this article
Poznyak, É.G., Popov, A.G. Non-euclidean geometry: The Gauss formula and an interpretation of partial differential equations. J Math Sci 78, 241–252 (1996). https://doi.org/10.1007/BF02365190
Issue Date:
DOI: https://doi.org/10.1007/BF02365190