In recent years generalized acceptance criteria for different nondeterministic computation models have been examined. Instead of the common definition where an input word is said...
The paper focuses on the structure of fundamental sequences of ordinals smaller than ε0. A first result is the construction of a monadic second-order formula identifying a given ...
We present a collection of new and enhanced tools for experimenting with concepts in formal languages and automata theory. New tools, written in Java, include JFLAP for creating a...
Susan H. Rodger, Anna O. Bilska, Kenneth H. Leider...
Labeled unranked trees are used as a model of XML documents, and logical languages for them have been studied actively over the past several years. Such logics have different purpo...