eng URI http://hdl.handle.net/10795/2930 φυσικές επιστήμες στοιχειώδη σωματίδια οπτική φυσικές επιστήμες We study the breaking of global discrete symmetries -specifically inversion and translation- in one-dimensional scattering set-ups. We focus on the case where the broken global symmetry is retained locally, in arbitrary domains of finite spatial extent and we find a class of space invariant, non-local currents, which are remnants of the broken global symmetry. The proposed method addresses successfully any combination of translation and inversion symmetry and can be applied to the study of wave propagation in aperiodic and quasi-periodic media. 161 pp. LOMv1.0 creator LOMv1.0 Scientific Coordinator LOMv1.0 Project Executing Organisation 2014 Digital Library of the Operational Programme "Education and Lifelong Learning" abstract types Text Discrete symmetries Inversion Translation Periodic and quasi-periodic systems 11506121 application/pdf http://repository.edulll.gr/edulll/bitstream/10795/2930/2/2930_1.91_%ce%94%ce%94_9_5_14.pdf URI http://hdl.handle.net/10795/2930 LOMv1.0creator 2016-04-26T11:54:36Z LOMv1.0validator 2016-04-26T11:54:36Z LOMv1.0 gre no no Copyright EYD-EPEDBM (Operational Programme "Education and Lifelong Learning")