35 search results - page 5 / 7 » Proof of a Chromatic Polynomial Conjecture |
CORR
2010
Springer
14 years 11 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 ...
86
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CPC
2006
14 years 11 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
15 years 3 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...
114
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EJC
2008
14 years 11 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...
115
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FOCS
1995
IEEE
15 years 3 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...