Geometric elements in the theory of transformations of ordinary second-order linear differential equations
Article:
Borůvka, Otakar
Geometric elements in the theory of transformations of ordinary second-order linear differential equations [working paper](English).Symposium of Differential Equations and Dynamical Systems. Mathematics Institute, University of Warwick, 1968-9, 19-22 (more ...)
Geometric elements in the theory of transformations of ordinary second-order linear differential equations(English).Lecture Notes in Mathematics 206/1971, Proceedings of Symposium of Differential Equations and Dynamical Systems. Mathematics Institute, University of Warwick, 1968-9, 15-17 (more ...)