347 search results - page 1 / 70 » Schaefer's theorem for graphs |
CORR
2010
Springer
13 years 2 months ago
2010
Springer
Schaefer's theorem is a complexity classification result for so-called Boolean constraint satisfaction problems: it states that every Boolean constraint satisfaction problem ...
STOC
2001
ACM
14 years 5 months ago
2001
ACM
JCT
2007
13 years 4 months ago
2007
An edge in a drawing of a graph is called even if it intersects every other edge of the graph an even number of times. Pach and T´oth proved that a graph can always be redrawn so...
ENDM
2007
13 years 4 months ago
2007
In this paper we investigate how certain results related to the HananiTutte theorem can be extended from the plane to surfaces. We give a simple topological proof that the weak Ha...
COCO
2004
Springer
13 years 10 months ago
2004
Springer
We prove a parameterized analog of Schaefer’s Dichotomy Theorem: we show that for every finite boolean constraint family F, deciding whether a formula containing constraints fr...