Fourier analysis of the light curves of eclipsing variables,XXI

The aim of the present paper is to deduce some further properties of the fundamental quantities inherent in the frequency-domain approach-such as the fractional loss of light _l ⁰ and momentsA _2m of the light curves of eclipsing variables; and also to develop an iterative method for the solution of two key eclipse parametersa andc ₀ in terms of the observed quantities. This should facilitate practical applications of the methods developed in the preceding papers of this series for the frequency-domain light curve analysis of eclipsing variables.