Three variants of apical growth filamentous systems
T. B nescu, Mădălina Gheorghe, Gh P un · International Journal of Computer Mathematics · 1987
We consider parallel, context-free and context sensitive apical growth filamentous systems (in which leftmost and rightmost k symbols may be rewritten). The power of such systems is investigated as well as the power of terminal vocabulary, finite number of axioms and erasing rules.