Almost Kahler 4-manifolds with J-invariant ricci tensor and special weyl tensor
نویسندگان
چکیده
منابع مشابه
Almost Kähler 4-manifolds with J-invariant Ricci Tensor and Special Weyl Tensor
for any tangent vectors X,Y to M . If the almost complex structure J is integrable we obtain a Kähler structure. Many efforts have been done in the direction of finding curvature conditions on the metric which insure the integrability of the almost complex structure. A famous conjecture of Goldberg [26] states that a compact almost Kähler, Einstein manifold is in fact Kähler. Important progress...
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ژورنال
عنوان ژورنال: The Quarterly Journal of Mathematics
سال: 2000
ISSN: 0033-5606,1464-3847
DOI: 10.1093/qjmath/51.3.275