Title
Flip-pushdown automata: k + 1 pushdown reversals are better than k
Abstract
Flip-pushdown automata are pushdown automata with the additional power to flip or reverse its pushdown, and were recently introduced by Sarkar [13]. We solve most of Sarkar’s open problems. In particular, we show that k+1 pushdown reversals are better than k for both deterministic and nondeterministic flip-pushdown automata, i.e., there are languages which can be recognized by a deterministic flip-pushdown automaton with k+1 pushdown reversals but which cannot be recognized by a k-flip-pushdown (deterministic or nondeterministic). Furthermore, we investigate closure and non-closure properties as well as computational complexity problems such as fixed and general membership.
Year
DOI
Venue
2003
10.1007/3-540-45061-0_40
ICALP'03 Proceedings of the 30th international conference on Automata, languages and programming
Keywords
Field
DocType
deterministic flip-pushdown automaton,pushdown automaton,open problem,general membership,pushdown reversal,non-closure property,computational complexity problem,nondeterministic flip-pushdown automaton,additional power,flip-pushdown automaton,pushdown automata
Deterministic context-free grammar,Embedded pushdown automaton,Discrete mathematics,Combinatorics,Two-way deterministic finite automaton,Context-free language,Nested word,Computer science,Deterministic pushdown automaton,Deterministic context-free language,Pushdown automaton
Conference
Volume
ISSN
ISBN
2719
0302-9743
3-540-40493-7
Citations 
PageRank 
References 
20
1.28
9
Authors
2
Name
Order
Citations
PageRank
Markus Holzer113812.30
Martin Kutrib277889.77