On rational normal ruled surfaces
β Scribed by B. Ramamurti
- Publisher
- Springer
- Year
- 1935
- Tongue
- English
- Weight
- 254 KB
- Volume
- 111
- Category
- Article
- ISSN
- 0025-5831
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π SIMILAR VOLUMES
Ruled surfaces have been studied by NAGATA IS], MARUYAMA [3, 41 and other authors from the point of view of classification. Especially on rational ruled surfaces we have known many facts, for example, an explicit condition for a divisor D to be ample, that for ID( to have an irreducible member and s
DEDICATED TO R. SRIDHARAN CONTENTS Introduction. 1. Background material. ## 2. General results on normal presentation. 3. Ampleness, base-point-freeness, and cohomology of line bundles on elliptic ruled surfaces. 4. Normal presentation on elliptic ruled surfaces. 5. Koszul algebras. References
ruled surfaces of degree 2m, whose shape is guided by m Ο© 1 control lines and m frame lines. This is an advantage In this paper, geometric design problems for rational ruled surfaces are studied. We investigate a line geometric control over the method of Ravani and Wang, which results in structure a