Über einige spezielle Kongruenzenpaare. (German) Zbl 0192.58501


53A20 Projective differential geometry
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[1] СП. Фиников: Теория пар конгруэнции. Москва 1956. · Zbl 0995.90522
[2] Е. Т. Ивлев: Канонический репер пари конгруэнции в трехмерном проективном пространстве. Труды гос. унив. Томск 160, 1, 15-24 (1962). · Zbl 1005.68507
[3] A. Švec: Projective differential geometry of line congruences. Praha 1965.
[4] J. Vala: Über die Torsalsysteme des Kongruenzenpaares. · Zbl 0207.20202
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