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» On completely nonmeasurable unions
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SBBD
2004
119views Database» more  SBBD 2004»
13 years 9 months ago
Computing the Dependency Basis for Nested List Attributes
Multi-valued dependencies (MVDs) are an important class of constraints that is fundamental for relational database design. Although modern applications increasingly require the su...
Sven Hartmann, Sebastian Link
GC
2008
Springer
13 years 7 months ago
Laplacian Spectrum of Weakly Quasi-threshold Graphs
In this paper we study the class of weakly quasi-threshold graphs that are obtained from a vertex by recursively applying the operations (i) adding a new isolated vertex, (ii) addi...
R. B. Bapat, A. K. Lal, Sukanta Pati
COMBINATORICA
2007
126views more  COMBINATORICA 2007»
13 years 7 months ago
Privileged users in zero-error transmission over a noisy channel
The k-th power of a graph G is the graph whose vertex set is V (G)k , where two distinct ktuples are adjacent iff they are equal or adjacent in G in each coordinate. The Shannon ...
Noga Alon, Eyal Lubetzky
NDJFL
1998
100views more  NDJFL 1998»
13 years 7 months ago
Failure of Interpolation in Combined Modal Logics
We investigate transfer of interpolation in such combinations of modal logic which lead to interaction of the modalities. Combining logics by taking products often blocks transfer...
Maarten Marx, Carlos Areces
TIT
2002
63views more  TIT 2002»
13 years 7 months ago
Structured unitary space-time autocoding constellations
We recently showed that arbitrarily reliable communication is possible within a single coherence interval in Rayleigh flat fading as the symbol-duration of the coherence interval ...
Thomas L. Marzetta, Babak Hassibi, Bertrand M. Hoc...