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SIAMDM
2008
97views more  SIAMDM 2008»
13 years 10 months ago
Disjoint Color-Avoiding Triangles
A set of pairwise edge-disjoint triangles of an edge-colored Kn is r-color avoiding if it does not contain r monochromatic triangles, each having a different color. Let fr(n) be th...
Raphael Yuster
SIAMDM
2008
105views more  SIAMDM 2008»
13 years 10 months ago
Average Spectra and Minimum Distances of Low-Density Parity-Check Codes over Abelian Groups
Ensembles of regular low-density parity-check codes over any finite Abelian group G are studied. The nonzero entries of the parity matrix are randomly chosen, independently and uni...
Giacomo Como, Fabio Fagnani
SIAMJO
2008
108views more  SIAMJO 2008»
13 years 10 months ago
Sparse SOS Relaxations for Minimizing Functions that are Summations of Small Polynomials
This paper discusses how to find the global minimum of functions that are summations of small polynomials ("small" means involving a small number of variables). Some spa...
Jiawang Nie, James Demmel
ALGORITHMICA
2005
97views more  ALGORITHMICA 2005»
13 years 10 months ago
Representing Trees of Higher Degree
This paper focuses on space efficient representations of rooted trees that permit basic navigation in constant time. While most of the previous work has focused on binary trees, w...
David Benoit, Erik D. Demaine, J. Ian Munro, Rajee...
ALGORITHMICA
2005
149views more  ALGORITHMICA 2005»
13 years 10 months ago
Approximating Maximum Weight Cycle Covers in Directed Graphs with Weights Zero and One
A cycle cover of a graph is a spanning subgraph each node of which is part of exactly one simple cycle. A k-cycle cover is a cycle cover where each cycle has length at least k. Gi...
Markus Bläser, Bodo Manthey