[en] It has been shown that shock waves in the relativistic hydrodynamics arising, for instance, from collisions of high-speed particles can be considered as relativistic detonation waves. Viscosity, medium heat conduction and diffusion are not taken into account. The proof is based on the adiabat of final reaction products, which is determined in coordinates, representing relativistic generalization of common pressure and specific volume. At this point relativistic current and entropy assume, as usual, miniumum values. It is shown that detonation wave can exist, if polytropic dependence between particle density and internal energy takes place. Some consequences of the results obtained have been briefly considered