973 search results - page 33 / 195 » New Bounds on Crossing Numbers |
GD
2004
Springer
15 years 5 months ago
2004
Springer
The no-three-in-line problem, introduced by Dudeney in 1917, asks for the maximum number of points in the n × n grid with no three points collinear. In 1951, Erd¨os proved that t...
JCT
2007
14 years 11 months ago
2007
ABSTRACT. We present an extension of the Delsarte linear programming method for spherical codes. For several dimensions it yields improved upper bounds including some new bounds on...
MOC
1998
14 years 11 months ago
1998
Using a new regulator bound we determine unit groups and class groups of the 289040 quintic algebraic number fields with absolute discriminant less than 2 × 107 (totally real fi...
102
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ISAAC
2010
Springer
14 years 9 months ago
2010
Springer
Abstract. In this paper, we consider the problem of computing a minimum bending energy path (or MinBEP) in a simple corridor. Given a simple 2D corridor C bounded by straight line ...
115
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BMCBI
2005
14 years 11 months ago
2005
Background: Protein-protein, protein-DNA and protein-RNA interactions are of central importance in biological systems. Quadrapole Time-of-flight (Q-TOF) mass spectrometry is a sen...