Vestnik of Samara University. Natural Science SeriesVestnik of Samara University. Natural Science Series2541-75252712-8954Samara National Research University465510.18287/2541-7525-2013-19-6-5-12THE STRUCTURE OF MODULAR FORM: THE PHENOMEN OF THE SECTIONVoskresenskayaG.V.morenov.sv@ssau.ruSamara State University020620131965120206201702062017Copyright © 2013, Voskresenskaya G.2013<div>In the article we study the structure of spaces of modular forms S<sub>k</sub>(Г<sub>0</sub>(N),х) and M<sub>k</sub>(Г<sub>0</sub>(N ),х) for the levels N such that for a value k<sub>0</sub> S<sub>k<sub>0</sub></sub> (Г<sub>0</sub>(N),х) is a one-dimensional space generated by a multiplicative n-product.</div>пространства модулярных форм, эта-функция Дедекинда, параболические вершины