Remizov А. S. RussiaSaratov Saratov State University, ul. Astrakhanskaya, 83, Saratov, 410012, Russia Ассистент кафедры вычислительной физики и автоматизации научных исследований СГУ.Кандидат физико- математических наукremisovas@mail.ru Additional info Область научных интересов – хаотическая динамика. Author's articles INVESTIGATION OF STRUCTURE OF INVARIANT DENSITY FOR R´ ENYI MAP BY GAUSS METHOD ANALYTICAL SOLUTION OF SPECTRAL PROBLEM FOR THE PERRON – FROBENIUS OPERATOR OF PIECE-WISE LINEAR CHAOTIC MAPS EIGENFUNCTIONS AND EIGENVALUES OF THE PERRON–FROBENIUS OPERATOR OF PIECE-WISE LINEAR CHAOTIC MAPS POLYNOMIAL EIGENFUCTIONS OF THE PERRON–FROBENIUS OPERATOR