Browsing Department of Physics by Subject "MATHEMATICAL"

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Comment on 'Nonlinear dynamics of a position-dependent mass-driven Duffing-type oscillator'

Mustafa, Omar (IOP Publishing, 2013-09)

Using a generalized coordinate along with a proper invertible coordinate transformation, we show that the Euler–Lagrange equation used by Bagchi et al (2013 J. Phys. A: Math. Theor. 46 032001) is in clear violation of ...