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On Strominger Kähler-like manifolds with degenerate torsion

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成果类型:
期刊论文
作者:
Yau, Shing-Tung;Zhao, Quanting;Zheng, Fangyang
作者机构:
[Yau, Shing-Tung] Harvard Univ, Dept Math, Cambridge, MA 02138 USA.
[Zhao, Quanting] Cent China Normal Univ, Sch Math & Stat, Wuhan 430079, Peoples R China.
[Zhao, Quanting] Cent China Normal Univ, Hubei Key Lab Math Sci, Wuhan 430079, Peoples R China.
[Zheng, Fangyang] Chongqing Normal Univ, Sch Math Sci, Chongqing 401331, Peoples R China.
语种:
英文
关键词:
Kähler-like;Strominger connection;Chern connection;Riemannian connection;pluriclosed metric;locally conformal Kähler;Sasakian manifold;degenerate torsion
期刊:
TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY
ISSN:
0002-9947
年:
2023
卷:
376
期:
05
页码:
3063-3085
基金类别:
NSG [PHY-0714648, DMS-1308244]; NSFC [12071050, 12141101, cstc2021ycjh-bgzxm0139]; China Scholarship Council; 111 Project [11801205]; Chongqing grant; [D21024]
机构署名:
本校为其他机构
院系归属:
数学与统计学学院
摘要:
In this paper, we study a special type of compact Hermitian manifolds that are Strominger Ka.hler-like, or SKL for short. This condition means that the Strominger connection (also known as Bismut connection) is Ka.hler-like, in the sense that its curvature tensor obeys all the symmetries of the curvature of a Ka.hler manifold. Previously, we have shown that any SKL manifold (Mn, g) is always pluriclosed, and when the manifold is compact and g is not Ka.hler, it cannot admit any balanced or strongly Gauduchon (in the sense of Popovici) metric. Also, when n = 2, the SKL condition is equivalent t...

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