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COMBINATORICS
2002
69views more  COMBINATORICS 2002»
13 years 7 months ago
Spanning Trees and Function Classes
If G = Kn is the complete graph, the classical Pr
Jeffrey B. Remmel, S. G. Williamson
IPL
2010
158views more  IPL 2010»
13 years 4 months ago
Finding bipartite subgraphs efficiently
Polynomial algorithms are given for the following two problems:
Dhruv Mubayi, György Turán
JGT
2010
109views more  JGT 2010»
13 years 2 months ago
Homomorphism-homogeneous graphs
We answer two open questions posed by Cameron and Nesetril concerning homomorphismhomogeneous graphs. In particular we show, by giving a characterization of these graphs, that ext...
Momchil Rusinov, Pascal Schweitzer
DM
1999
109views more  DM 1999»
13 years 7 months ago
Hamiltonian powers in threshold and arborescent comparability graphs
We examine powers of Hamiltonian paths and cycles as well as Hamiltonian (power) completion problems in several highly structured graph classes. For threshold graphs we give effic...
Sam Donnelly, Garth Isaak
JDA
2010
131views more  JDA 2010»
13 years 6 months ago
Convex drawings of hierarchical planar graphs and clustered planar graphs
: Hierarchical graphs are graphs with layering structures; clustered graphs are graphs with recursive clustering structures. Both have applications in VLSI design, CASE tools, soft...
Seok-Hee Hong, Hiroshi Nagamochi