1. On oscillatory solutions of fourth order ordinary differential equations Creator: Palumbíny, Oleg Format: bez média and svazek Type: model:article and TEXT Subject: linear differential equation, quasi-derivative, monotone solution, Kneser solution, and oscillatory solution Language: English Description: The paper deals with the oscillation of a differential equation $L_4y+P(t)L_2y+Q(t)y\equiv 0$ as well as with the structure of its fundamental system of solutions. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public