标题： 福克-洛伦兹变换和变化的光速 显示英文标题

标题： Fock-Lorentz transformations and time-varying speed of light

摘要： 相对论理论是建立在线性洛伦兹变换基础上的。 然而，在他的基础著作《空间、时间与引力理论》中，V.A.福克指出，两个惯性系之间坐标变换的一般形式可以取为线性分式形式。 该变换的隐式形式包含两个不同时空维度的常数。 它们可以简化为具有速度量纲（“光速”）的常数“c”，以及具有长度量纲（可见宇宙部分的不变半径）的常数“R”。 “光锥”的几何表明，“R”是一个基本常数，但“c”则取决于变换的时间。 显示英文摘要

摘要： The theory of relativity was built up on linear Lorentz transformation. However, in his fundamental work "Theory of Space, Time and Gravitation" V.A.Fock shows that the general form of the transformation between the coordinates in the two inertial frames could be taken to be linear fractional. The implicit form of this transformation contains two constants of different space-time dimensions. They can be reduced to the constant "c" with the dimension of speed ("speed of light"), and to the constant "R" with the dimension of length (an invariant radius of the visible part of the Universe). The geometry of the "light cones" shows that "R" is a fundamental constant, but "c" depends on the time of transformation.