I am totally confused about the Lorentz Group at the moment. According to wikipedia, the Lorentz group can be defined as the General Orthogonal Lie Group##O(1,3)##. However, the definition of the GO Lie Group that I know only works when there is a single number inside the bracket, not 2, e.g. ##O(1)##. So, what does ##O(1,3)## mean? Thanks in advance.(adsbygoogle = window.adsbygoogle || []).push({});

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# Lorentz group definition

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