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» An Existential Locality Theorem
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APAL
2004
73views more  APAL 2004»
13 years 8 months ago
Shrinking games and local formulas
Gaifman's normal form theorem showed that every first order sentence of quantifier rank n is equivalent to a Boolean combination of "scattered local sentences", whe...
H. Jerome Keisler, Wafik Boulos Lotfallah
COMBINATORICA
2011
12 years 8 months ago
A local criterion for Tverberg graphs
The topological Tverberg theorem states that for any prime power q and continuous map from a (d + 1)(q − 1)-simplex to Rd , there are q disjoint faces Fi of the simplex whose im...
Alexander Engström
CORR
2011
Springer
137views Education» more  CORR 2011»
13 years 3 months ago
An improvement of the Moser-Tardos algorithmic local lemma
A recent theorem of Bissacot, et al. proved using results about the cluster expansion in statistical mechanics extends the Lov´asz Local Lemma by weakening the conditions under w...
Wesley Pegden
APAL
2006
73views more  APAL 2006»
13 years 8 months ago
Compactness in locales and in formal topology
If a locale is presented by a "flat site", it is shown how its frame can be presented by generators and relations as a dcpo. A necessary and sufficient condition is deri...
Steven J. Vickers
CONSTRAINTS
2007
83views more  CONSTRAINTS 2007»
13 years 8 months ago
Generic Incremental Algorithms for Local Search
When a new (global) constraint is introduced in local search, measures for the penalty and variable conflicts of that constraint must be defined, and incremental algorithms for m...
Magnus Ågren, Pierre Flener, Justin Pearson