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APPML
2006
80views more  APPML 2006»
13 years 7 months ago
Unicyclic graphs with exactly two main eigenvalues
An eigenvalue of a graph G is called a main eigenvalue if it has an eigenvector the sum of whose entries is not equal to zero, and it is well known that a graph has exactly one ma...
Yaoping Hou, Feng Tian
COMBINATORICS
2006
102views more  COMBINATORICS 2006»
13 years 7 months ago
Discrepancy of Sums of Three Arithmetic Progressions
The set system of all arithmetic progressions on [n] is known to have a discrepancy of order n1/4. We investigate the discrepancy for the set system S3 n formed by all sums of thr...
Ales Prívetivý
ICPR
2000
IEEE
14 years 3 days ago
A General Rank-2 Parameterization of the Fundamental Matrix
All the methods for estimating the fundamental matrix do not naturally exploit the rank-2 constraint. For these reason some few rank-2 parameterizations of the fundamental matrix ...
Francesco Isgrò, Emanuele Trucco
DAGSTUHL
2007
13 years 9 months ago
Parallel Universes: Multi-Criteria Optimization
In this paper parallel universes are defined by their relation to multi-criteria optimization combined with an explicit or implicit link for the unambiguous identification of an ...
Claus Weihs, Heike Trautmann
DCG
2010
75views more  DCG 2010»
13 years 7 months ago
Star Unfolding Convex Polyhedra via Quasigeodesic Loops
We extend the notion of star unfolding to be based on a quasigeodesic loop Q rather than on a point. This gives a new general method to unfold the surface of any convex polyhedron ...
Jin-ichi Itoh, Joseph O'Rourke, Costin Vîlcu