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CORR
2008
Springer
71views Education» more  CORR 2008»
14 years 10 months ago
Subclose Families, Threshold Graphs, and the Weight Hierarchy of Grassmann and Schubert Codes
Abstract. We discuss the problem of determining the complete weight hierarchy of linear error correcting codes associated to Grassmann varieties and, more generally, to Schubert va...
Sudhir R. Ghorpade, Arunkumar R. Patil, Harish K. ...
STOC
2004
ACM
134views Algorithms» more  STOC 2004»
15 years 10 months ago
Approximate max-integral-flow/min-multicut theorems
We establish several approximate max-integral-flow / minmulticut theorems. While in general this ratio can be very large, we prove strong approximation ratios in the case where th...
Kenji Obata
ALGORITHMICA
2008
111views more  ALGORITHMICA 2008»
14 years 10 months ago
Fixed-Parameter Complexity of Minimum Profile Problems
The profile of a graph is an integer-valued parameter defined via vertex orderings; it is known that the profile of a graph equals the smallest number of edges of an interval supe...
Gregory Gutin, Stefan Szeider, Anders Yeo
GD
2005
Springer
15 years 3 months ago
Hierarchical Layouts of Directed Graphs in Three Dimensions
Abstract. We introduce a new graph drawing convention for 3D hierarchical drawings of directed graphs. The vertex set is partitioned into layers of vertices drawn in parallel plane...
Seok-Hee Hong, Nikola S. Nikolov
EVOW
2006
Springer
15 years 1 months ago
A Multiagent Algorithm for Graph Partitioning
The k-cut problem is an NP-complete problem which consists of finding a partition of a graph into k balanced parts such that the number of cut edges is minimized. Different algori...
Francesc Comellas, Emili Sapena