P systems with active membranes: attacking NP-complete problems
Journal of Automata, Languages and Combinatorics
Complexity classes in models of cellular computing with membranes
Natural Computing: an international journal
On the power of membrane division in P systems
Theoretical Computer Science - Words, languages and combinatorics
A fast P system for finding a balanced 2-partition
Soft Computing - A Fusion of Foundations, Methodologies and Applications
Complexity Theory: Exploring the Limits of Efficient Algorithms
Complexity Theory: Exploring the Limits of Efficient Algorithms
Attacking the common algorithmic problem by recognizer p systems
MCU'04 Proceedings of the 4th international conference on Machines, Computations, and Universality
P systems with elementary active membranes: beyond NP and coNP
CMC'10 Proceedings of the 11th international conference on Membrane computing
A Σ2P∪ Π2Plower bound using mobile membranes
DCFS'11 Proceedings of the 13th international conference on Descriptional complexity of formal systems
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Membrane computing is a formal framework of distributed parallel multiset processing. Due to massive parallelism and exponential space some intractable computational problems can be solved by P systems with active membranes in a polynomial number of steps. In this paper we generalize this approach from decisional problems to the computational ones, by providing a solution of a #P-complete problem, namely to compute the permanent of a binary matrix. The implication of this result to the PP complexity class is discussed and compared to known results about NP ∪ co − NP.