2440 search results - page 164 / 488 » Data-Intensive Question Answering |
124
click to vote
JCT
2010
15 years 29 days ago
2010
For every k and r, we construct a finite family of axis-parallel rectangles in the plane such that no matter how we color them with k colors, there exists a point covered by prec...
107
click to vote
JGT
2010
15 years 29 days ago
2010
We show that every plane graph with maximum face size four whose all faces of size four are vertex-disjoint is cyclically 5-colorable. This answers a question of Albertson whether...
116
click to vote
DMTCS
2010
14 years 12 months ago
2010
In a recent paper, Brlek, Jamet and Paquin showed that some extremal infinite smooth words are also infinite Lyndon words. This result raises a natural question: are they the only...
89
Voted
DM
2011
14 years 9 months ago
2011
We show that there exists a family of r-regular graphs of arbitrarily large excessive index for each integer r greater than 3. Furthermore, we answer a question in [1] showing tha...
JAT
2011
14 years 9 months ago
2011
We prove that there exists a weakly closed and bounded subset E of c0 which is not remotal from 0, and such that co (E) is remotal from 0. This answers a question of M. Mart´ın ...