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» The Last Fraction of a Fractional Conjecture
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ACS
2007
13 years 7 months ago
Components of the Fundamental Category II
In this article we carry on the study of the fundamental category (Goubault and Raussen, 2002; Goubault, 2003) of a partially ordered topological space (Nachbin, 1965; Johnstone, 1...
Eric Goubault, Emmanuel Haucourt
CSR
2008
Springer
13 years 7 months ago
Colouring, constraint satisfaction, and complexity
Constraint satisfaction problems have enjoyed much attention since the early seventies, and in the last decade have become also a focus of attention amongst theoreticians. Graph c...
Pavol Hell, Jaroslav Nesetril
MCSS
2006
Springer
13 years 7 months ago
A lattice approach to analysis and synthesis problems
Within a lattice approach, the purpose of this paper is to give general necessary and sufficient conditions for internal stabilizability and for the existence of (weakly) left-/rig...
Alban Quadrat
DM
1998
81views more  DM 1998»
13 years 7 months ago
On intersecting hypergraphs
We investigate the following question: “Given an intersecting multi-hypergraph on n points, what fraction of edges must be covered by any of the best 2 points?” (Here “best...
Barry Guiduli, Zoltán Király
STOC
2006
ACM
131views Algorithms» more  STOC 2006»
14 years 7 months ago
On maximizing welfare when utility functions are subadditive
We consider the problem of maximizing welfare when allocating m items to n players with subadditive utility functions. Our main result is a way of rounding any fractional solution...
Uriel Feige