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ENTCS
2008
70views more  ENTCS 2008»
13 years 8 months ago
Spatial Differentiation and Positive Circuits in a Discrete Framework
Abstract. The biologist R. Thomas has enounced a rule relating multistationnarity in a system of genes interacting in a single cell to the existence of a positive circuit in the re...
Anne Crumière, Paul Ruet
IANDC
2008
86views more  IANDC 2008»
13 years 8 months ago
Unambiguous Boolean grammars
Abstract. Boolean grammars are an extension of context-free grammars, in which all propositional connectives are allowed. In this paper, the notion of ambiguity in Boolean grammars...
Alexander Okhotin
CORR
2006
Springer
110views Education» more  CORR 2006»
13 years 8 months ago
Definitions by Rewriting in the Calculus of Constructions
Abstract : The main novelty of this paper is to consider an extension of the Calculus of Constructions where predicates can be defined with a general form of rewrite rules. We prov...
Frédéric Blanqui
DM
2006
59views more  DM 2006»
13 years 8 months ago
Factors of the Gaussian coefficients
Abstract. We present some simple observations on factors of the qbinomial coefficients, the q-Catalan numbers, and the q-multinomial coefficients. Writing the Gaussian coefficient ...
William Y. C. Chen, Qing-Hu Hou
CORR
2007
Springer
82views Education» more  CORR 2007»
13 years 8 months ago
Programs as polygraphs: computability and complexity
Abstract – This study presents Albert Burroni’s polygraphs as an algebraic and graphical description of first-order functional programs, where functions can have many outputs....
Guillaume Bonfante, Yves Guiraud