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Compact Hermitian surfaces of pointwise constant holomorphic sectional curvature

Published online by Cambridge University Press:  18 May 2009

Kouei Sekigawa
Affiliation:
Department of Mathematics, Faculty of ScienceNiigata University, Niigata 950-21, Japan
Takashi Koda
Affiliation:
Department of Mathematics, Faculty of Science, Toyama University, Gofuku, Toyama 930, Japan E-mail address: [email protected] (Takashi Koda)
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Let M = (M, J, g) be an almost Hermitian manifold and U(M)the unit tangent bundle of M. Then the holomorphic sectional curvature H = H(x) can be regarded as a differentiable function on U(M). If the function H is constant along each fibre, then M is called a space of pointwise constant holomorphic sectional curvature. Especially, if H is constant on the whole U(M), then M is called a space of constant holomorphic sectional curvature. An almost Hermitian manifold with an integrable almost complex structure is called a Hermitian manifold. A real 4-dimensional Hermitian manifold is called a Hermitian surface. Hermitian surfaces of pointwise constant holomorphic sectional curvature have been studied by several authors (cf. [2], [3], [5], [6] and so on).

Type
Research Article
Copyright
Copyright © Glasgow Mathematical Journal Trust 1995

References

REFERENCES

1.Hitchin, N., Kahlerian twistor spaces, Proc. London Math. Soc. 43 (1981), 133150.CrossRefGoogle Scholar
2.Koda, T., Self-dual and anti-self-dual Hermitian surfaces, Kodai Math. J. 10 (1987), 335342.CrossRefGoogle Scholar
3.Koda, T. and Sekigawa, K., Self-dual Einstein Hermitian surfaces, in Progress in Differential Geometry, Advanced Studies in Pure Mathematics 22 (1993), 123131.CrossRefGoogle Scholar
4.Miyaoka, Y., On the Chern numbers of surfaces of general type, Invent. Math. 42 (1977), 225237.CrossRefGoogle Scholar
5.Sato, T. and Sekigawa, K., Hermitian surfaces of constant holomorphic sectional curvature, Math.Z. 205 (1990), 659668.CrossRefGoogle Scholar
6.Sato, T. and Sekigawa, K., Hermitian surfaces of constant holomorphic sectional curvature II, Tamkang J. Math. 23 (1992), 137143.CrossRefGoogle Scholar
7.Sekigawa, K., On some 4-dimensional compact almost Hermitian manifolds, J. Ramanujan Math. Soc. 2 (1987), 101116.Google Scholar
8.Tricceri, F. and Vaisman, I., On some 2-dimensional Hermitian manifolds, Math. Z. 192 (1986), 205216.CrossRefGoogle Scholar