1. The period of a whirling pendulum Creator: Lichardová, Hana Format: bez média and svazek Type: model:article and TEXT Subject: Hamiltonian system, period function, and Picard-Fuchs equations Language: English Description: The period function of a planar parameter-depending Hamiltonian system is examined. It is proved that, depending on the value of the parameter, it is either monotone or has exactly one critical point. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public