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20032008
most citedNew aspects of integrability of force-free Duffing-van der Pol oscillator and related nonlinear systems

47 citations

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nlin.PS2008★ 22 cited

Nonlinear molecular excitations in a completely inhomogeneous DNA chain

M. Daniel, V. Vasumathi

We study the nonlinear dynamics of a completely inhomogeneous DNA chain which is governed by a perturbed sine-Gordon equation. A multiple scale perturbation analysis provides pertu…

nlin.PS2007★ 9 cited

Nonstationary excitations in Bose-Einstein condensates under the action of periodically varying scattering length with time dependent frequencies

S. Rajendran, P. Muruganandam, M. Lakshmanan

We investigate nonstationary excitations in 3D-Bose-Einstein condensates in a spherically symmetric trap potential under the modulation of scattering length with slowly varying fre…