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On rational isotropic congruences of lines

✍ Scribed by Boris Odehnal


Publisher
Springer
Year
2004
Tongue
English
Weight
220 KB
Volume
81
Category
Article
ISSN
0047-2468

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## Abstract In this article we study congruences of lines in β„™^__n__^, and in particular of order one. After giving general results, we obtain a complete classification in the case of β„™^4^ in which the fundamental surface __F__ is in fact a variety, i.e. it is integral, and the congruence is the ir