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1·A metric tensor describes a geometry of spacetime. The geodesic paths for a spacetime are calculated from the metric tensor.

该解决方案的场方程的组成部分的度量张量的时空。数据量描述了几何时空。在大地的时空路径计算的数据量。

2·The invariant tensor under projective transformations of semi- symmetric metric- recurrentconnectionsisobtained.

给出了半对称度量循环联络在射影变换下的不变张量。