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COMBINATORICS
2007
55views more  COMBINATORICS 2007»
13 years 8 months ago
Which Chessboards have a Closed Knight's Tour within the Cube?
A closed knight’s tour of a chessboard uses legal moves of the knight to visit every square exactly once and return to its starting position. When the chessboard is translated i...
Joe DeMaio
CORR
2007
Springer
64views Education» more  CORR 2007»
13 years 8 months ago
Series which are both max-plus and min-plus rational are unambiguous
Consider partial maps Σ∗ −→   with a rational domain. We show that two families of such series are actually the same: the unambiguous rational series on the one hand, and ...
Sylvain Lombardy, Jean Mairesse
JASIS
2006
54views more  JASIS 2006»
13 years 8 months ago
Which user interaction for cross-language information retrieval? Design issues and reflections
Daniela Petrelli, Stephen Levin, Micheline Beaulie...
DCG
2007
91views more  DCG 2007»
13 years 8 months ago
Which n-Venn Diagrams Can Be Drawn with Convex k-Gons?
We establish a new lower bound for the number of sides required for the component curves of simple Venn diagrams made from polygons. Specifically, for any n-Venn diagram of conve...
Jeremy Carroll, Frank Ruskey, Mark Weston