Differential geometry of conics in the projective space of three dimensions.—I. Fundamental theorem in the theory of a one-parameter family of conics [PDF]
Akitsugu Kawaguchi
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On differential geometry intrinsically connected with a surface element of projective arc length [PDF]
P. O. Bell
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Projective differential geometry of correspondences between two spaces. III [PDF]
Eduard Čech
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Fundamental forms in the projective differential geometry of $m$-parametric families of hypersurfaces of the second order in the $n$-dimensional space [PDF]
Akitsugu Kawaguchi
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Projective differential geometry of correspondences between two spaces. VI [PDF]
Eduard Čech
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Smooth and Discrete Cone-Nets. [PDF]
Kilian M, Müller C, Tervooren J.
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Projective differential geometry of correspondences between two spaces. VII [PDF]
Eduard Čech
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On differential geometry of a surface embedded in the three dimmensional space with a projective connection [PDF]
Alois Švec
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Geometric Structures Induced by Deformations of the Legendre Transform. [PDF]
Morales PA, Korbel J, Rosas FE.
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Contributions to the affine- and projective differential geometries of space curves
Shigeo Sasaki
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