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Title: P transducers
Authors: Ciobanu, G.
Pǎun, G.
Ştefǎnescu, G. 
Keywords: Chomsky hierarchy
Membrane computing
Turing machine
Issue Date: 2006
Source: Ciobanu, G.,Pǎun, G.,Ştefǎnescu, G. (2006). P transducers. New Generation Computing 24 (1) : 1-28. ScholarBank@NUS Repository.
Abstract: We introduce in this paper four classes of P transducers: arbitrary, initial, isolated arbitrary, isolated and initial. The first two classes are universal, they can compute the same word functions as Turing machines, the latter two are incomparable with finite state sequential transducers, generalized or not. We study the effect of the composition, and show that iteration increases the power of these latter classes, also leading to a new characterization of recursively enumerable languages. The "Sevilla carpet" of a computation is defined for P transducers, giving a representation of the control part for these P transducers.
Source Title: New Generation Computing
ISSN: 02883635
DOI: 10.1007/BF03037291
Appears in Collections:Staff Publications

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