Journal for Geometry and Graphics 10 (2006), No. 1, 023--036
Copyright Heldermann Verlag 2006
On a Special Pair of Parallel Congruences
Despina Papadopoulou
Dept. of Mathematics, Aristotle University, Thessaloniki, Greece
papdes@math.auth.gr
Pelagia Koltsaki
Dept. of Mathematics, Aristotle University, Thessaloniki, Greece
kopel@math.auth.gr
The subject of this paper is the study of a special pair of parallel line congruences, i.e., line congruences with a common spherical image, in a three-dimensional Euclidean space.
Keywords: Ruled surfaces, line congruences.
MSC: 53A25
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