Abstract
Let C ⊂ P 3 be a smooth and connected projective curve of genus g ≥ 2. Here in characteristic ≠ 2 we prove that its generic plane section is in uniform position and that its numerical character is connected.
Similar content being viewed by others
References
Bonacina, P.: On the plane section of integral curves in positive characteristic, Proc. Amer. Math. Soc., 138 (2008), no. 7, 2289–2297
Bonacina, P.: Laudal’s lemma in positive characteristic, J. Algebraic Geom., (to appear)
Dolcetti, A.: Halphen’s gaps for space curves of submaximum genus, Bull. Soc. Math. France, 116 (1988), no. 2, 157–170
Ellia, Ph.: Sur les lacunes d’Halphen. In: Algebraic Curves and Projective Geometry, Proceedings Trento (1988), 43–65, Lecture Notes in Math., 1389, Berlin, Springer (1989)
Ellia, Ph., Peskine, Ch.: Groupes de points de P 2 : caractère et position uniform. In: Algebraic Geometry, Proceedings, L’Aquila (1988), Lecture Notes in Math., 1417, Berlin, Springer (1990), 111–116
Gruson, L., Peskine, Ch.: Genre des courbes de l’espace projectif. In: Algebraic Geometry (Trømso, (1977), Lecture Notes in Math., 687, Berlin, Springer (1978), 31–59
Harris, J.: The genus of space curves, Math. Ann., 249 (1980), 191–204
Hartshorne, R.: The genus of space curves, Ann. Univ. Ferrara, Sez. VII (N.S.) 40 (1994), 207–223
Hefez, A., Kleiman, S.: Notes on the duality of projective varieties, Geometry Today, Giornate di Geometria, Roma (1984), Basel, Birkhäuser (1985), 143–183
Kaji, H.: On the Gauss maps of space curves in characteristic p, I, Compositio Math., 70 (1989), 177–197
Kaji, H.: On the Gauss maps of space curves in characteristic p, II, Compositio Math., 78 (1991), no. 3, 261–269
Laksov, D.: Indecomposability of restricted tangent bundles. In: Young tableaux and Schur functors in algebra and geometry (Toruń, 1980), Astérisque, 87–88, Paris, Soc. Math. France (1981), 207–219
Maggioni, R., Ragusa, A.: The Hilbert function of generic plane sections of curves in P 3, Invent. Math., 91 (1988), 253–255
Rathmann, J.: The uniform position principle for curves in characteristic p, Math. Ann., 276 (1987), no. 4, 565–579
Strano, R.: Characterization of complete intersection curves in P 3, Proc. Amer. Math. Soc., 104 (1988), no. 3, 711–715
Author information
Authors and Affiliations
Corresponding author
Additional information
Partially supported by MIUR and GNSAGA of INdAM (Italy)
Rights and permissions
About this article
Cite this article
Ballico, E. On the generic plane section of smooth space curves in positive characteristic. Rend. Circ. Mat. Palermo 58, 41–44 (2009). https://doi.org/10.1007/s12215-009-0004-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12215-009-0004-4