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Browsing PHY – Journal Articles: Publisher & Author Versions (Post-Print Author Versions) – Physics by Subject "ORDINARY DIFFERENTIAL-EQUATIONS, Euler-Lagrange equations invariance"

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Position-dependent mass Lagrangians: nonlocal transformations, Euler-Lagrange invariance and exact solvability

Mustafa, Omar (IOP Publishing, 2015)

A general nonlocal point transformation for position-dependent mass (PDM) Lagrangians and their mapping into a 'constant unit-mass' Lagrangians in the generalized coordinates is introduced. The conditions on the invariance ...