Coordinate velocity and desynchronization of clocks

In this letter, starting from recent experiments about the circular motion of a rotor with an absorber of photons emitted by a Mossbauer source, we want to underline some mathematical aspects in General Relativity framework. We do not want to discuss in detail the different physical interpretations of the experimental results proposed during the recent years and we do not want to propose a new one. Indeed, starting from a paper awarded to Gravity Research Competition 2018, the aim of our work is to analyze three different types of time involved in this experiment linking a term introduced in the above mentioned paper, to the difference between coordinate and physical velocity of light. (C) 2019 Elsevier Inc. All rights reserved.