Comments on “investigation of the properties of the period for the nonlinear oscillator ”

• DOI: 10.1016/j.jsv.2007.02.005
• Publication Date: 2007-03-29T07:16:59Z
• Authors: A. Beléndez; T. Beléndez; A. Hernández; S. Gallego; M. Ortuño; C. Neipp
• Keywords: Modified Lindstedt-Poincaré method; Física Aplicada; 0103 physical sciences; Nonlinear oscillator; Approximate solutions; 01 natural sciences

This work was supported by the ‘‘Ministerio de Educacion y Ciencia’’, Spain, under project FIS2005-05881-C02-02, and by the ‘‘Generalitat Valenciana’’, Spain, under project ACOMP006/007.