透过60个公式体验数学之美( 五 )


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60. Contracted Bianchi identity where R^(μν) is the Ricci tensor and R is the scalar curvature

透过60个公式体验数学之美

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参考资料:https://www.frontiersin.org/articles/10.3389/fnhum.2014.00068/full维基百科