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Physical Sciences and Mathematics Commons

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Publications

Mathematics

2004

Congruence

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Full-Text Articles in Physical Sciences and Mathematics

Generalised Surfaces In ℝ³, Brendan Guilfoyle, Wilhelm Klingenberg Dec 2004

Generalised Surfaces In ℝ³, Brendan Guilfoyle, Wilhelm Klingenberg

Publications

The correspondence between 2-parameter families of oriented lines in ℝ³ and surfaces in Tℙ¹ is studied, and the geometric properties of the lines are related to the complex geometry of the surface. Congruences generated by global sections of Tℙ¹ are investigated, and a number of theorems are proven that generalise results for closed convex surfaces in ℝ³.