Asynchronous P systems with active membranes
نویسندگان
چکیده
منابع مشابه
Turing Incompleteness of Asynchronous P Systems with Active Membranes
We prove that asynchronous P systems with active membranes without division rules can be simulated by place/transition Petri nets, and hence are computationally weaker than Turing machines. This result holds even if the synchronisation mechanisms provided by electrical charges and membrane dissolution are exploited.
متن کاملPolarizationless P Systems with Active Membranes
The subject of this paper is the continuation of the studies of P systems with active membranes without polarizations with the label-changing capacity of some rules. Rewriting and communication rules that do not change membrane labels can be applied either sequentially or in a maximally parallel way. We consider several classes of P systems and study their generative power. Particularly interes...
متن کاملConstant-Space P Systems with Active Membranes
We continue the investigation of the computational power of spaceconstrained P systems. We show that only a constant amount of space is needed in order to simulate a polynomial-space bounded Turing machine. Due to this result, we propose an alternative definition of space complexity for P systems, where the amount of information contained in individual objects and membrane labels is also taken ...
متن کاملP Systems with Active Membranes Characterize PSPACE
P system is a natural computing model inspired by behavior of living cells and their membranes. We show that (semi-)uniform families of P systems with active membranes can solve in polynomial time exactly the class of problems PSPACE. Consequently, these P systems are computationally equivalent (w.r.t. the polynomial time reduction) to standard parallel machine models as PRAM and the alternatin...
متن کاملFlattening P Systems with Active Membranes
Given a P system Π with active membranes having several membranes, we construct a P system Π having only one membrane and rules involving catalysts, cooperation and priorities. The evolution of this “flat” P system Π simulates the evolution of initial P system with active membranes Π by replacing any rule that changes the configuration in Π by prioritized rules application in a configuration of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Theoretical Computer Science
سال: 2012
ISSN: 0304-3975
DOI: 10.1016/j.tcs.2011.12.026