Einstein metrics, harmonic forms, and symplectic four-manifolds
Einstein metrics, harmonic forms, and symplectic four-manifolds
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DOI:
10.1007/s10455-015-9458-0
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发表时间:
2014-08
影响因子:
0.7
通讯作者:
C. LeBrun
中科院分区:
文献类型:
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作者:
C. LeBrun
Ifis the underlying smooth oriented four-manifold of a Del Pezzo surface, we consider the set of Riemannian metricsonsuch that, whereis the self-dual Weyl curvature of, andis a non-trivial self-dual harmonic two-form on. While this open region in the space of Riemannian metrics contains all the known Einstein metrics on, we show that it contains no others. Consequently, it contributes exactly one connected component to the moduli space of Einstein metrics on.