🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsTürkçeРусскийفارسی한국어中文日本語EntityQ2226855· pop 13· linked from 20 articlesSharkovskii's theoremtheorem about the periodic points of discrete dynamical systems on an intervalAvailable in 13 languagesEspañolFrançaisDeutsch日本語РусскийPortuguêsItalianoCatalanPolskiUkrainianConnectionsJames A. YorkeEntitymathematicsEntityCategoriesSoviet inventionsTheorems in dynamical systems