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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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On the topology of simply connected algebraic surfaces
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by Richard Mandelbaum and Boris Moishezon PDF
Trans. Amer. Math. Soc. 260 (1980), 195-222 Request permission

Abstract:

Suppose x is a smooth simply-connected compact 4-manifold. Let $p = {\textbf {C}}{P^2}$ and $Q = - {\textbf {C}}{P^2}$ be the complex projective plane with orientation opposite to the usual. We shall say that X is completely decomposable if there exist integers a, b such that X is diffeomorphic to $aP {\text {\# }} bQ$. By a result of Wall [W1] there always exists an integer k such that $X \# (k + 1)P \# kQ$ is completely decomposable. If $X \# P$ is completely decomposable we shall say that X is almost completely decomposable. In [MM] we demonstrated that any nonsingular hypersurface of ${\textbf {C}}{P^3}$ is almost completely decomposable. In this paper we generalize this result in two directions as follows: Theorem 3.5. Suppose W is a simply-connected nonsingular complex projective 3-fold. Then there exists an integer ${m_0} \geqslant 1$ such that any hypersurface section ${V_m}$ of W of degree $m \geqslant {m_0}$ which is nonsingular will be almost completely decomposable. Theorem 5.3. Let V be a nonsingular complex algebraic surface which is a complete intersection. Then V is almost completely decomposable.
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Additional Information
  • © Copyright 1980 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 260 (1980), 195-222
  • MSC: Primary 14J99; Secondary 57R99
  • DOI: https://doi.org/10.1090/S0002-9947-1980-0570786-6
  • MathSciNet review: 570786