225 search results - page 24 / 45 » From polynomial time queries to graph structure theory |
CORR
2007
Springer
14 years 9 months ago
2007
Springer
We use support theory, in particular the fretsaw extensions of Shklarski and Toledo [ST06a], to design preconditioners for the stiffness matrices of 2-dimensional truss structure...
COMPGEOM
2010
ACM
15 years 2 months ago
2010
ACM
Let G be an unweighted graph of complexity n cellularly embedded in a surface (orientable or not) of genus g. We describe improved algorithms to compute (the length of) a shortest...
ICDT
2010
ACM
15 years 1 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...
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SODA
2010
ACM
14 years 8 months ago
2010
ACM
We present an exact algorithm that decides, for every fixed r ≥ 2 in time O(m) + 2O(k2 ) whether a given multiset of m clauses of size r admits a truth assignment that satisfi...
STACS
2001
Springer
15 years 2 months ago
2001
Springer
The stretch factor of a Euclidean graph is the maximum ratio of the distance in the graph between any two points and their Euclidean distance. Given a set S of n points in Rd, we ...