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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
DOI: 10.1007/s00022-004-1739-0

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