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FOCS
1997
IEEE
13 years 12 months ago
The Computational Complexity of Knot and Link Problems
We consider the problem of deciding whether a polygonal knot in 3dimensional Euclidean space is unknotted, capable of being continuously deformed without self-intersection so that...
Joel Hass, J. C. Lagarias, Nicholas Pippenger
CPAIOR
2004
Springer
13 years 11 months ago
A Global Constraint for Graph Isomorphism Problems
The graph isomorphism problem consists in deciding if two given graphs have an identical structure. This problem can be modeled as a constraint satisfaction problem in a very strai...
Sébastien Sorlin, Christine Solnon
JCO
2008
102views more  JCO 2008»
13 years 7 months ago
Stable matching problems with exchange restrictions
We study variants of classical stable matching problems in which there is an additional requirement for a stable matching, namely that there should not be two participants who wou...
Robert W. Irving
STACS
2007
Springer
14 years 1 months ago
The Polynomially Bounded Perfect Matching Problem Is in NC 2
Abstract. The perfect matching problem is known to be in ¶, in randomized NC, and it is hard for NL. Whether the perfect matching problem is in NC is one of the most prominent ope...
Manindra Agrawal, Thanh Minh Hoang, Thomas Thierau...
CPAIOR
2005
Springer
14 years 1 months ago
Symmetry and Search in a Network Design Problem
Abstract. An optimization problem arising in the design of optical fibre networks is discussed. A network contains client nodes, each installed on one or more SONET rings. A const...
Barbara M. Smith