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arXiv 0803.1929gr-qc
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广义相对论中时空的几何结构

Geometrical Structures of Space-Time in General Relativity

Ignacio Sanchez-Rodriguez

摘要:

广义相对论中的时空是一个动力学实体,因为它服从爱因斯坦场方程。时空度规提供了不同的几何结构:共形,体积,投影和线性连接。对它们的深刻理解对几何学所起的动力学作用具有重要意义。我们提出了一个统一的描述,这些几何结构,与自然的标准,然后我们建立它们之间的关系,并试图澄清相关的几何量的意义。

英文摘要:

Space-Time in general relativity is a dynamical entity because it is subject to the Einstein field equations. The space-time metric provides different geometrical structures: conformal, volume, projective and linear connection. A deep understanding of them has consequences on the dynamical role played by geometry. We present a unified description of those geometrical structures, with a standard criterion of naturalness, and then we establish relationships among them and try to clarify the meaning of associated geometric magnitudes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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