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IANDC
2008
86views more  IANDC 2008»
15 years 26 days 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
186
Voted
IANDC
2008
139views more  IANDC 2008»
15 years 26 days ago
Computational complexity of dynamical systems: The case of cellular automata
Abstract. Cellular Automata can be considered discrete dynamical systems and at the same time a model of parallel computation. In this paper we investigate the connections between ...
Pietro di Lena, Luciano Margara
100
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CN
2006
88views more  CN 2006»
15 years 26 days ago
Benefits of advertising wavelength availability in distributed lightpath establishment
In this paper, we study the benefits of advertising wavelength availability in a distributed lightpath establishment environment by extensive simulations. Various cases with diffe...
Shu Shen, Gaoxi Xiao, Tee Hiang Cheng
COMBINATORICA
2006
69views more  COMBINATORICA 2006»
15 years 26 days ago
Distance Sequences In Locally Infinite Vertex-Transitive Digraphs
We prove that the out-distance sequence {f+ (k)} of a vertex-transitive digraph of finite or infinite degree satisfies f+ (k + 1) f+ (k)2 for k 1, where f+ (k) denotes the numbe...
Wesley Pegden
48
Voted
IEICET
2008
52views more  IEICET 2008»
15 years 25 days ago
Proposal of Stackable ROADM for Wavelength Transparent IP-over-CWDM Networks
Stackable ROADMs (S-ROADMs) have been proposed for use in regional IP-over-CWDM networks. The S-ROADM can be constructed by connecting modules with different wavelengths required i...
Md. Nooruzzaman, Yuichi Harada, Osanori Koyama, Yu...