On variational and topological methods in nonlinear difference equations
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DOI: 10.3934/cpaa.2018133
Abstract: In this paper, first we survey the recent progress in usage of the critical point theory to study the existence of multiple periodic and subharmonic solutions in second order difference equations and discrete Hamiltonian systems… read more here.
Keywords: difference equations; difference; topological methods; methods nonlinear ... See more keywords