Synchronization conditions of coupled maps using periodicities Roy Omar Edgar Bustos-Espinoza and Gonzalo Marcelo Ramírez-Ávila Eur. Phys. J. Special Topics, 225 13-14 (2016) 2697-2705 Published online: 22 November 2016 DOI: 10.1140/epjst/e2016-60030-2