%0 Generic %D 2013 %T A formalization of membrane systems with dynamically evolving structures %A Rudolf Freund %A Ignacio Pérez-Hurtado %A Agustín Riscos-Núñez %A Sergey Verlan %C London, UK %I Taylor and Francis %K dynamic structure %K formal definition %K P systems %N 4 %P 801-815 %R 10.1080/00207160.2012.748899 %U http://www.tandfonline.com/doi/abs/10.1080/00207160.2012.748899 %V 90 %X This article introduces a general formalism/framework flexible enough to cover descriptions of different variants of P systems having a dynamic membrane structure. Our framework can be useful for the precise definition of new variants of P systems with a dynamic structure and for the comparison of existing definitions as well as for their extension. We give a detailed definition of the formalism and we present some examples of how to translate several existing variants of P systems with a dynamic structure.