Two conjectures on Ricci-flat Kahler metrics

被引:13
|
作者
Loi, Andrea [1 ]
Salis, Filippo [1 ]
Zuddas, Fabio [1 ]
机构
[1] Univ Cagliari, Dipartimento Matemat & Informat, Via Osped 72, I-09124 Cagliari, Italy
关键词
Kahler manifolds; TYZ asymptotic expansion; Ricci-flat metrics; Projectively induced metrics; LOCALLY EUCLIDEAN METRICS; TIAN-YAU-ZELDITCH; SCALAR CURVATURE; PROJECTIVE EMBEDDINGS; ASYMPTOTIC-EXPANSION; SZEGO KERNEL; MANIFOLDS; QUANTIZATION; CONSTRUCTION; GEOMETRY;
D O I
10.1007/s00209-017-2033-6
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We propose two conjectures about Ricci-flat Kahler metrics: Conjecture 1: A Ricciflat projectively induced metric is flat. Conjecture 2: A Ricci-flat metric on an n-dimensional complex manifold such that the a(n+1) coefficient of the TYZ expansion vanishes is flat. We verify Conjecture 1 (see Theorem 1.1) under the assumptions that the metric is radial and stable-projectively induced and Conjecture 2 (see Theorem 1.2) for complex surfaces whose metric is either radial or complete and ALE. We end the paper by showing, by means of the Simanca metric, that the assumption of Ricci-flatness in Conjecture 1 and in Theorem 1.2 cannot be weakened to scalar-flatness (see Theorem 1.3).
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页码:599 / 613
页数:15
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