Smoothly embedded spheres

in symplectic 4-manifolds

Author:
Tian-Jun Li

Journal:
Proc. Amer. Math. Soc. **127** (1999), 609-613

MSC (1991):
Primary 57Rxx

DOI:
https://doi.org/10.1090/S0002-9939-99-04457-3

MathSciNet review:
1459135

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Abstract | References | Similar Articles | Additional Information

Abstract: We characterize rational or ruled surfaces among all symplectic 4-manifolds by the existence of certain smoothly embedded spheres.

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Additional Information

**Tian-Jun Li**

Affiliation:
Department of Mathematics, Yale University, New Haven, Connecticut 06520

Email:
tli@math.yale.edu

DOI:
https://doi.org/10.1090/S0002-9939-99-04457-3

Received by editor(s):
January 31, 1997

Received by editor(s) in revised form:
April 4, 1997

Communicated by:
Ronald A. Fintushel

Article copyright:
© Copyright 1999
American Mathematical Society