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99
Voted
TWC
2008
15 years 20 days ago
2008
Abstract-- The V-BLAST (vertical Bell Labs layered Space-Time) architecture involves independent coding/decoding per antenna (layer) with equal rate and power per antenna and a fix...
69
Voted
DM
2006
15 years 24 days ago
2006
A prototype of zero-sum theorems, the well-known theorem of Erdos, Ginzburg and Ziv says that for any positive integer n, any sequence a1, a2, . . . , a2n-1 of 2n-1 integers has a...
97
Voted
DM
2006
15 years 24 days ago
2006
The eccentric digraph ED(G) of a digraph G represents the binary relation, defined on the vertex set of G, of being `eccentric'; that is, there is an arc from u to v in ED(G)...
103
Voted
DM
2006
15 years 24 days ago
2006
Any given graph can be embedded in a chordal graph by adding edges, and the resulting chordal graph is called a triangulation of the input graph. In this paper we study minimal tr...
84
Voted
DM
2006
15 years 24 days ago
2006
In this paper, we study the problem of sampling (exactly) uniformly from the set of linear extensions of an arbitrary partial order. Previous Markov chain techniques have yielded ...