English

Restarting Automata with Auxiliary Symbols and Small Lookahead

Formal Languages and Automata Theory 2018-07-12 v3

Abstract

We present a study on lookahead hierarchies for restarting automata with auxiliary symbols and small lookahead. In particular, we show that there are just two different classes of languages recognised RRWW automata, through the restriction of lookahead size. We also show that the respective (left-) monotone restarting automaton models characterise the context-free languages and that the respective right-left-monotone restarting automata characterise the linear languages both with just lookahead length 2.

Keywords

Cite

@article{arxiv.1101.1640,
  title  = {Restarting Automata with Auxiliary Symbols and Small Lookahead},
  author = {Natalie Schluter},
  journal= {arXiv preprint arXiv:1101.1640},
  year   = {2018}
}

Comments

Full version of the paper accepted to LATA 2011