Discrete Space-time and Lorentz Transformations
Canadian mathematical bulletin, Tome 59 (2016) no. 1, pp. 123-135
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Alfred Schild established conditions where Lorentz transformations map world-vectors $\left( ct,\,x,\,y,\,z \right)$ with integer coordinates onto vectors of the same kind. The problem was dealt with in the context of tensor and spinor calculus. Due to Schild’s number-theoretic arguments, the subject is also interesting when isolated from its physical background.Schild’s paper is not easy to understand. Therefore, we first present a streamlined version of his proof which is based on the use of null vectors. Then we present a purely algebraic proof that is somewhat shorter. Both proofs rely on the properties of Gaussian integers
Mots-clés :
22E43, 20H99, 83A05, Lorentz transformation, integer lattice, Gaussian integers
Jensen, Gerd; Pommerenke, Christian. Discrete Space-time and Lorentz Transformations. Canadian mathematical bulletin, Tome 59 (2016) no. 1, pp. 123-135. doi: 10.4153/CMB-2015-066-4
@article{10_4153_CMB_2015_066_4,
author = {Jensen, Gerd and Pommerenke, Christian},
title = {Discrete {Space-time} and {Lorentz} {Transformations}},
journal = {Canadian mathematical bulletin},
pages = {123--135},
year = {2016},
volume = {59},
number = {1},
doi = {10.4153/CMB-2015-066-4},
url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2015-066-4/}
}
TY - JOUR AU - Jensen, Gerd AU - Pommerenke, Christian TI - Discrete Space-time and Lorentz Transformations JO - Canadian mathematical bulletin PY - 2016 SP - 123 EP - 135 VL - 59 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2015-066-4/ DO - 10.4153/CMB-2015-066-4 ID - 10_4153_CMB_2015_066_4 ER -
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