Higman essentially showed that if A is any language then SUBSEQ(A) is regular, where SUBSEQ(A) is the language of all subsequences of strings in A. Let s1, s2, s3, . . . be the sta...
Stephen A. Fenner, William I. Gasarch, Brian Posto...
It is known that LTL formulae without the `next' operator are invariant under the so-called stutter-equivalence of words. In this paper we extend this principle to general LTL...
We investigate the decidability of observational equivalence and approximation in Reynolds' "Syntactic Control of Interference" (SCI), a prototypical functionalimpe...
In order to enhance the active life of senior professionals, one fundamental challenge is to identify ways to assist promoting the role of elder people within the continuously agei...
Program Synthesis, which is the task of discovering programs that realize user intent, can be useful in several scenarios: enabling people with no programming background to develo...