Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSechseckgewebe und Strahlensysteme.AuthorsKoltsaki, PelagiaAbstractLet S be an oriented rectilinear congruence in the three-dimensional Euclidean space E3. In this paper we prove necessary and sufficient conditions, so that certain ruled surfaces of S meet its middle surface in an hexagonal web.SubjectsWEBS (Differential geometry); GEOMETRIC congruences; DIFFERENTIAL geometry; GEOMETRY; MATHEMATICSPublicationJournal of Geometry, 2004, Vol 81, Issue 1/2, p93ISSN0047-2468Publication typeArticleDOI10.1007/s00022-004-1725-3