Sciweavers

DAM
2008
85views more  DAM 2008»
13 years 11 months ago
On the complexity of constrained VC-classes
Sauer's Lemma is extended to classes HN of binary-valued functions h on [n] = {1, . . . , n} which have a margin less than or equal to N on all x [n] with h(x) = 1, where th...
Joel Ratsaby
DAM
2008
125views more  DAM 2008»
13 years 11 months ago
Heyting algebras with Boolean operators for rough sets and information retrieval applications
This paper presents an algebraic formalism for reasoning on finite increasing sequences over Boolean algebras in general and on generalizations of Rough Set concepts in particular...
Eric SanJuan
DAM
2008
63views more  DAM 2008»
13 years 11 months ago
Skew partitions in perfect graphs
We discuss some new and old results about skew partitions in perfect graphs.
Bruce A. Reed
DAM
2008
101views more  DAM 2008»
13 years 11 months ago
Three Hoppy path problems and ternary paths
In this paper we solve several recurrence relations with two (three) indices using combinatorial methods. Moreover, we present several recurrence relations with two (three) indice...
Eva Yu-Ping Deng, Toufik Mansour
DAM
2008
93views more  DAM 2008»
13 years 11 months ago
Planar graph bipartization in linear time
For each constant k, we present a linear time algorithm that, given a planar graph G, either finds a minimum odd cycle vertex transversal in G or guarantees that there is no transv...
Samuel Fiorini, Nadia Hardy, Bruce A. Reed, Adrian...
DAM
2008
102views more  DAM 2008»
13 years 11 months ago
On the computational complexity of partial covers of Theta graphs
By use of elementary geometric arguments we prove the existence of a special integral solution of a certain system of linear equations. The existence of such a solution yields the...
Jirí Fiala, Jan Kratochvíl, Attila P...
DAM
2008
62views more  DAM 2008»
13 years 11 months ago
Geodeticity of the contour of chordal graphs
José Cáceres, M. Carmen Hernando, Me...
DAM
2008
71views more  DAM 2008»
13 years 11 months ago
On hereditary clique-Helly self-clique graphs
Francisco Larrión, Miguel A. Pizaña
DAM
2008
136views more  DAM 2008»
13 years 11 months ago
General theory of information transfer: Updated
We report on ideas, problems and results, which occupied us during the past decade and which seem to extend the frontiers of information theory in several directions. The main con...
Rudolf Ahlswede