Poincaré is a subgroup of Galilei in one space dimension more
- 1 February 1978
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 19 (2) , 526-528
- https://doi.org/10.1063/1.523654
Abstract
Through an imaginary change of coordinates, the ordinary Poincar algebra is shown to be a subalgebra of the Galilei one in four space dimensions. Through a subsequent contraction the remaining Lie generators are eliminated in a natural way. An application of these results to connect Galilean and relativistic field equations is discussedKeywords
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