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» A generalization of weight polynomials to matroids
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ISAAC
2005
Springer
106views Algorithms» more  ISAAC 2005»
13 years 10 months ago
Generating Cut Conjunctions and Bridge Avoiding Extensions in Graphs
Let G = (V, E) be an undirected graph, and let B ⊆ V × V be a collection of vertex pairs. We give an incremental polynomial time algorithm to enumerate all minimal edge sets X â...
Leonid Khachiyan, Endre Boros, Konrad Borys, Khale...
CPC
2006
72views more  CPC 2006»
13 years 5 months ago
Parametrized Tutte Polynomials of Graphs and Matroids
We generalize and unify results on parametrized and coloured Tutte polynomials of graphs and matroids due to Zaslavsky [Trans. Amer. Math. Soc. 334 (1992), 317-347] and Bollob
Joanna A. Ellis-Monaghan, Lorenzo Traldi
CRYPTO
2005
Springer
171views Cryptology» more  CRYPTO 2005»
13 years 11 months ago
On Codes, Matroids and Secure Multi-party Computation from Linear Secret Sharing Schemes
Error correcting codes and matroids have been widely used in the study of ordinary secret sharing schemes. In this paper, we study the connections between codes, matroids, and a s...
Ronald Cramer, Vanesa Daza, Ignacio Gracia, Jorge ...
IPCO
2007
81views Optimization» more  IPCO 2007»
13 years 6 months ago
Matching Problems in Polymatroids Without Double Circuits
According to the present state of the theory of the matroid matching problem, the existence of a good characterization to the size of a maximum matching depends on the behavior of ...
Márton Makai, Gyula Pap, Jácint Szab...
DAM
2006
136views more  DAM 2006»
13 years 5 months ago
The complexity of maximum matroid-greedoid intersection and weighted greedoid maximization,
The maximum intersection problem for a matroid and a greedoid, given by polynomialtime oracles, is shown NP-hard by expressing the satisfiability of boolean formulas in 3-conjunct...
Taneli Mielikäinen, Esko Ukkonen