Number of Singularities of a Generic Web on the Complex Projective Plane
โ Scribed by Joseph N. A. Yartey
- Publisher
- Springer
- Year
- 2005
- Tongue
- English
- Weight
- 225 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0925-4668
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
An explicit formula for the number of finite cyclic projective planes or planar . ลฝ . difference sets is derived by applying Ramanujan sums Von Sterneck numbers and Mobius inversion over the set partition lattice to counting one-to-one solution vectors of multivariable linear congruences.
Let X be the surface obtained by blowing up general points p 1 p n of the projective plane over an algebraically closed ground field k, and let L be the pullback to X of a line on the plane. If C is a rational curve on X with C โข L = d, then for every t there is a natural map C C t โ X X L โ C C t +