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QUESTA
2006
13 years 10 months ago
2006
In this paper we consider nonhomogeneous birth and death processes (BDP) with periodic rates. Two important parameters are studied, which are helpful to describe a nonhomogeneous B...
JSAT
2007
13 years 9 months ago
2007
This paper is concerned with the complexity of some natural subclasses of minimal unsatisfiable formulas. We show the DP –completeness of the classes of maximal and marginal mi...
FSS
2010
13 years 8 months ago
2010
In this paper, we attempt a systematic study of QL-implications. Towards this end, firstly, we investigate the conditions under which a QL-operation becomes a fuzzy implication w...
IJFCS
2011
13 years 5 months ago
2011
some studies linked the computational power of abstract computing systems based on multiset rewriting to Petri nets and the computation power of these nets to pology. In turn, the ...
TCS
2011
13 years 4 months ago
2011
We consider some Riordan arrays related to binary words avoiding a pattern p, which can be easily studied by means of an A-matrix rather than their A-sequence. Both concepts allow...