Volodymyr Fedorchuk (Pidstryhach Institute of Applied Problems of Mechanics and Mathematics of NAS of Ukraine, Lviv, Ukraine)

On functional bases of the first-order differential invariants of the splitting subgroups of the Poincaré group P(1,4)

Abstract:
Set of all non-equivalent functional bases of the first-order differential invariants of the splitting subgroups of the Poincaré group P(1,4) is devided by seven subsets. Each subset contains a common characteristic functional basis of the lowest dimension.