JUCS
2002
13 years 4 months ago
2002
: A purely communicative variant of P systems was considered recently, based on the trans-membrane transport of couples of chemicals. When using both symport rules (the chemicals p...
JUCS
2002
13 years 4 months ago
2002
: By introducing a new operation, the exponentiation of formal languages, we can define Heyting algebras of formal languages. It turns out that some well known families of language...
JUCS
2002
13 years 4 months ago
2002
: In this paper, we study the number of tilings of the hyperbolic plane that can be constructed, starting from a single pentagonal tile, the only permitted transformations on the b...
JUCS
2002
13 years 4 months ago
2002
: Infinite words on a finite non-empty alphabet have been investigated in various respects. We will consider here two important strategies in approaching such words; one of them pr...
JUCS
2002
13 years 4 months ago
2002
JUCS
2002
13 years 4 months ago
2002
: When the words of a language are communicated via a noisy channel, the language property of error-detection ensures that no word of the language can be transformed to another wor...
JUCS
2002
13 years 4 months ago
2002
: Let G = (V, E) be a strongly connected and aperiodic directed graph of uniform out-degree k. A deterministic finite automaton is obtained if the edges are colored with k colors i...
JUCS
2002
13 years 4 months ago
2002
The main goal of this research is to improve Information Retrieval Systems by enabling them to generate search outcomes that are relevant and customized to each specific user. Our ...
JUCS
2002
13 years 4 months ago
2002
: With any Petri net we associated its CPN language which consists of all sequences of transitions which reach a marking with an empty place whereas all proper prefixes of the sequ...
JUCS
2002
13 years 4 months ago
2002
