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123
Voted
FOCS
1990
IEEE
15 years 7 months ago
1990
IEEE
The exponent of periodicity is an important factor in estimates of complexity of word-unification algorithms. We prove that the exponent of periodicity of a minimal solution of a w...
121
Voted
CPAIOR
2005
Springer
15 years 9 months ago
2005
Springer
Abstract. The NValue constraint counts the number of different values assigned to a vector of variables. Propagating generalized arc consistency on this constraint is NP-hard. We ...
114
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EUROCRYPT
1999
Springer
15 years 8 months ago
1999
Springer
Abstract. In this paper, we give some relationship between the nonlinearity of rational functions over F2n and the number of points of associated hyperelliptic curve. Using this, w...
138
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CISS
2008
IEEE
15 years 10 months ago
2008
IEEE
—This paper studies the design and analysis of optimal training-based beamforming in uncorrelated multipleinput multiple-output (MIMO) channels with known Gaussian statistics. Fi...
112
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COMBINATORICS
2007
15 years 3 months ago
2007
For a prime p and a vector ¯α = (α1, . . . , αk) ∈ Zk p let f (¯α, p) be the largest n such that in each set A ⊆ Zp of n elements one can find x which has a unique repr...