引力系统拉格朗日密度的基本性质及其导数
Fundamental Properties of Lagrangian Density for A Gravitational System and Their Derivations
摘要：
通过对引力系统拉格朗日密度的基本性质的讨论，系统地研究了修正的爱因斯坦场方程和Lorentz守恒律、Levi-Civita守恒律的理论基础。我们的研究证实了这样一种观点，即它们可以作为建立新宇宙学的前提。
英文摘要：
Through the discussion of the fundamental properties of Lagrangian density for a gravitational system, the theoretical foundations of the modified Einstein field equations and the Lorentz and Levi-Civita conservation laws are systematically studied. Our study confirms the view that they could be used as the premises to establish a new cosmology.
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