Superwater movement of material bodies

In his fourth work, the author shows that the mass of a moving material object is a relativistic invariant at any speed of the movement of this body, that is, not only for a speed, a lower speed of light, but also for the speed of movement both equal to it and its superior.
The author receives the top-light transformations of the coordinates of space-time and believes that they are as legitimate transformations as the usual sub-light transformations of the Lorentz. Moreover, super -light transformations form a group both in themselves and in conjunction with the usual sub -light transformations of Lorentz.
The author believes that our real material world of pre-light movements may well be described by imaginary numbers without any damage to its materiality. And vice versa, the world of super -light movements may well be described by real numbers, despite its, supposedly, imagination