Normal congruences with focal bicylindrical surfaces

• Datum: 1993
• Hauptverfasser: Koneva, N. P., Конева, Н. П.
• Format: Artikel
• Sprache: Russisch; Englisch
• Veröffentlicht: Institute of Mathematics, NAS of Ukraine 1993
• Online Zugang: https://umj.imath.kiev.ua/index.php/umj/article/view/5859
• Назва журналу: Ukrains’kyi Matematychnyi Zhurnal

A system of equations determining normal con~uences with focal surfaces (bicylinders) is found in a biaxial space of hyperbolic type by using a moving frame of the space and the method of Cartan exterior forms. The geometric construction of these congruences is presented.