133 search results - page 24 / 27 » Subgraphs with restricted degrees of their vertices in plana... |
GC
2007
Springer
13 years 8 months ago
2007
Springer
We localize and strengthen Katona’s idea of an edge-toughness to a local topological toughness. We disprove a conjecture of Katona concerning the connection between edgetoughnes...
STOC
2006
ACM
14 years 8 months ago
2006
ACM
Classes of graphs with bounded expansion have been introduced in [15], [12]. They generalize both proper minor closed classes and classes with bounded degree. For any class with b...
FOCS
2006
IEEE
14 years 2 months ago
2006
IEEE
An additive spanner of an unweighted undirected graph G with distortion d is a subgraph H such that for any two vertices u, v ∈ G, we have δH(u, v) ≤ δG(u, v) + d. For every...
SODA
2004
ACM
13 years 9 months ago
2004
ACM
We solve an open problem posed by Eppstein in 1995 [14, 15] and re-enforced by Grohe [16, 17] concerning locally bounded treewidth in minor-closed families of graphs. A graph has ...
IWPEC
2010
Springer
13 years 6 months ago
2010
Springer
The Colorful Motif problem asks if, given a vertex-colored graph G, there exists a subset S of vertices of G such that the graph induced by G on S is connected and contains every c...