Relations entre les rayons de courbure de quelques systèmes de courbes
Remarque sur un théorème de M. A. Pellissier
Representation and Construction of Projective Planes and Other Geometric Structures from Projective Spaces.
Rotation indices related to Poncelet’s closure theorem
Let CRCr denote an annulus formed by two non-concentric circles CR, Cr in the Euclidean plane. We prove that if Poncelet’s closure theorem holds for k-gons circuminscribed to CRCr, then there exist circles inside this annulus which satisfy Poncelet’s closure theorem together with Cr, with ngons for any n > k.
Různé způsoby zobrazování v deskriptivní geometrii [Book]
Schleiermachers Starrheitsbedingung für Projektivitäten in der Topologischen Geometric.
Schnitt und Verbindung in projektiven Hjelmsleveschen Räumen.
Sequences of isoclinal spheres.
Seules les quadriques admettent des caustiques
Similarity motions in with plane trajectories
In this paper the author finds and describes all similarity space motions, which have only plane trajectories of points. All such motions are explicitly expressed. They are of 5 types, all of them cylindrical. Trajectories are conic sections (3 types) or arbitrary plane curves (2 types).
Solution de la question proposée au concours pour les deux académies de Montpellier et d'Aix (année 1870)
Solution d'une question du concours d'agrégation de 1864
Solution d'une question du concours d'agrégation de 1865
Solution d'une question géométrique
Solution d'une question proposée par M. Catalan
Some properties of -projecting.
Spezielle ebene Kurven als Leitlinien isophotischer Zylinderstreifen
Stability of classes of affine mappings.
Stereographische Projektion und quadratisches Spurenprinzip im R4
Su di un problema di Ph. Straffin