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DAM
2007
47views more  DAM 2007»
13 years 11 months ago
Tutte sets in graphs II: The complexity of finding maximum Tutte sets
Douglas Bauer, Hajo Broersma, Nathan Kahl, Aurora ...
DAM
2007
153views more  DAM 2007»
13 years 11 months ago
Computing the minimum number of hybridization events for a consistent evolutionary history
It is now well-documented that the structure of evolutionary relationships between a set of present-day species is not necessarily tree-like. The reason for this is that reticulat...
Magnus Bordewich, Charles Semple
DAM
2007
76views more  DAM 2007»
13 years 11 months ago
Super-simple (v, 5, 4) designs
Super-simple designs are useful in constructing codes and designs such as superimposed codes and perfect hash families. Recently, Gronau et al determined the existence of super-si...
Kejun Chen, Ruizhong Wei
DAM
2007
81views more  DAM 2007»
13 years 11 months ago
Graphs, partitions and Fibonacci numbers
The Fibonacci number of a graph is the number of independent vertex subsets. In this paper, we investigate trees with large Fibonacci number. In particular, we show that all trees...
Arnold Knopfmacher, Robert F. Tichy, Stephan Wagne...
DAM
2007
97views more  DAM 2007»
13 years 11 months ago
On Sturmian graphs
In this paper we define Sturmian graphs and we prove that all of them have a certain “counting” property. We show deep connections between this counting property and two conj...
Chiara Epifanio, Filippo Mignosi, Jeffrey Shallit,...
DAM
2007
74views more  DAM 2007»
13 years 11 months ago
On the uniform edge-partition of a tree
We study the problem of uniformly partitioning the edge set of a tree with n edges into k connected components, where k ≤ n. The objective is to minimize the ratio of the maximu...
Bang Ye Wu, Hung-Lung Wang, Shih Ta Kuan, Kun-Mao ...
DAM
2007
100views more  DAM 2007»
13 years 11 months ago
Partially ordered knapsack and applications to scheduling
In the partially-ordered knapsack problem (POK) we are given a set N of items and a partial order ≺P on N. Each item has a size and an associated weight. The objective is to pac...
Stavros G. Kolliopoulos, George Steiner
DAM
2007
70views more  DAM 2007»
13 years 11 months ago
Tree-edges deletion problems with bounded diameter obstruction sets
We study the following problem: Given a tree G and a finite set of trees H, find a subset O of the edges of G such that G − O does not contain a subtree isomorphic to a tree f...
Dekel Tsur
DAM
2007
41views more  DAM 2007»
13 years 11 months ago
Distance-two labelings of digraphs
Gerard J. Chang, Jer-Jeong Chen, David Kuo, Sheng-...
DAM
2007
56views more  DAM 2007»
13 years 11 months ago
Geodesic-pancyclic graphs
Hung-Chang Chan, Jou-Ming Chang, Yue-Li Wang, Shi-...