Abstract
Let X be a strongly pseudoconvex n-dimensional manifold with one-dimensional connected exceptional set S. Here we show that if S is reducible, then X is embeddable into CN ×P m for some N, m and in particular X is Kählerian with a possible exception for n = 3; we analyze this exceptional case but we do not know if it may occur. The case in which S is irreducible was previously analyzed by Tan [11], who proved that X is embeddable if either n ≠ 3 or S is not isomorphic to P 1. In the same paper, Tan gave an example of a non-embeddable and non-Kählerian strongly pseudoconvex three-dimensional manifold withP 1 as an exceptional set.
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References
Altaian, A. and Kleiman, S. Introduction to Grothendieck Duality Theory,Lect. Notes in Math,146, Springer-Verlag, Heidelberg, 1970.
Ando, T. On the normal bundle of P1 in a higher dimensional projective variety,Am. J. Math.,113, 949–961, (1991).
Coltoiu, M. On the embedding of 1-convex manifolds with one-dimensional exceptional set,Comment. Math. Helve.,60, 458–465, (1985).
Hironaka, H. and Rossi, H. On the equivalence of embeddings of exceptional complex spaces,Math. Ann.,156, 313–333, (1964).
Horikawa, E. On deformation of holomorphic maps I,J. Math. Soc. Japan,25, 372–396, (1973).
Kawamata, Y. A generalization of Kodaira-Ramanujam’s Vanishing Theorem,Math. Ann.,261, 43–46, (1982).
Kawamata, Y. Small contractions of four dimensional algebraic manifolds,Math. Ann.,284, 595–600, (1989).
Nakayama, N. The lower semi-continuity of the plurigenera of complex varieties, Algebraic geometry, Sendai 1985,Adv. Studies in Pure Math.,10, 551–590, (1987).
Tan, V.V. On the embedding problem for 1-convex spaces,Trans. Am. Math. Soc.,261, 297–302, (1980).
Tan, V.V. Embedding theorems and Kahlerity for 1-convex spaces,Comment. Math. Helve.,57, 196–201, (1982).
Tan, V.V. On certain non-Kählerian strongly pseudoconvex manifolds,J. Geom. Anal,4, 233–245, (1994).
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Ballico, E. On strongly pseudoconvex manifolds with one-dimensional exceptional set. J Geom Anal 9, 175–178 (1999). https://doi.org/10.1007/BF02921934
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DOI: https://doi.org/10.1007/BF02921934