Аннотация:Abstract—Series with respect to a system of characters of a zero-dimensional compact commutative group are considered. Generalization of the test of convergence of Fourier series of the Vilenkinsystem in the case of unbounded quasimonotone pk for functions having a generalized bounded Φfluctuation, which was earlier obtained in the case of bounded sequences pk, is proved.DOI: 10.3103/S0027132222050084