On the “Einstein–Gauss–Bonnet gravity in four dimension”

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作者
Li-Ming Cao
Liang-Bi Wu
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[1] Peng Huanwu Center for Fundamental Theory,Interdisciplinary Center for Theoretical Study and Department of Modern Physics
[2] University of Science and Technology of China,undefined
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摘要
To ensure the existence of a well defined linearized gravitational wave equation, we show that the spacetimes in the so-called “Einstein–Gauss–Bonnet gravity in four dimension” have to be locally conformally flat.
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