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Null Line Preserving Bijections of Schwarzschild Spacetime |
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| Authors: | Wen-ling Huang |
| Affiliation: | (1) Department of Agrobiology and Agrochemistry, University of Tuscia, Via SC De Lellis, 01100 Viterbo, Italy;(2) Institute of Plant Genetics, CNR, Via Amendola 176/A, 70126 Bari, Italy; |
| Abstract: | Let n]¾, nS 3. A bijection of n-dimensional (exterior) Schwarzschild spacetime is an isometry, if, and only if, images and pre-images of null lines are null lines. |
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