35 search results - page 5 / 7 » Proof of a Chromatic Polynomial Conjecture |
CORR
2010
Springer
13 years 7 months ago
2010
Springer
It is a longstanding open problem to devise an oracle relative to which BQP does not lie in the Polynomial-Time Hierarchy (PH). We advance a natural conjecture about the capacity ...
CPC
2006
13 years 7 months ago
2006
Motivated by a scheduling problem that arises in the study of optical networks we prove the following result, which is a variation of a conjecture of Haxell, Wilfong and Winkler. ...
FOCS
1998
IEEE
13 years 11 months ago
1998
IEEE
We show that approximating the shortest vector problem (in any p norm) to within any constant factor less than p 2 is hard for NP under reverse unfaithful random reductions with i...
EJC
2008
13 years 7 months ago
2008
It is known that every constraint-satisfaction problem (CSP) reduces, and is in fact polynomially equivalent, to a digraph coloring problem. By carefully analyzing the constructio...
FOCS
1995
IEEE
13 years 11 months ago
1995
IEEE
This paper continues the investigation of the connection between probabilistically checkable proofs PCPs the approximability of NP-optimization problems. The emphasis is on prov...