We study the behavioural theory of Cardelli and Gordon’s Mobile Ambients. We give an lts based operational semantics, and a labelled bisimulation based equivalence that coincide...
paper we present an abstract agent programming language and its operational semantics which can be used to implement cognitive agents. This language consists of programming constr...
We develop an imperative calculus of objects that is both tiny and expressive. Our calculus provides a minimal setting in which to study the operational semantics and the typing r...
We explore the implications of supporting bags (i.e. multisets) in a data model and associated query language, and present some formal results concerned with the algebraic propert...
Visibly Pushdown Languages (VPLs), recognized by Visibly Pushdown Automata (VPAs), are a nicely behaved family of contextfree languages. It has been shown that VPAs are equivalent ...