Woods, DamienMurphy, NiallPérez Jiménez, Mario de JesúsRiscos Núñez, Agustín2018-01-092018-01-092009Woods, D., Murphy, N., Pérez Jiménez, M.d.J. y Riscos Núñez, A. (2009). Membrane dissolution and division in P. En UC 2009: 8th International Conference on Unconventional Computation (262-276), Ponta Delgada, Portugal: Springer.978-3-642-03744-30302-9743http://hdl.handle.net/11441/68475Membrane systems with dividing and dissolving membranes are known to solve PSPACE problems in polynomial time. However, we give a P upperbound on an important restriction of such systems. In particular we examine systems with dissolution, elementary division and where each membrane initially has at most one child membrane. Even though such systems may create exponentially many membranes, each with di erent contents, we show that their power is upperbounded by Papplication/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1007/978-3-642-03745-0_28