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» Computation of class numbers of quadratic number fields
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FFA
2006
116views more  FFA 2006»
13 years 8 months ago
Amorphic association schemes with negative Latin square-type graphs
Applying results from partial difference sets, quadratic forms, and recent results of Brouwer and Van Dam, we construct the first known amorphic association scheme with negative La...
James A. Davis, Qing Xiang
INFORMATICALT
2006
110views more  INFORMATICALT 2006»
13 years 8 months ago
Iterated Tabu Search for the Unconstrained Binary Quadratic Optimization Problem
Given a set of objects with profits (any, even negative, numbers) assigned not only to separate objects but also to pairs of them, the unconstrained binary quadratic optimization p...
Gintaras Palubeckis
DCC
2006
IEEE
14 years 8 months ago
A New Characterization of Semi-bent and Bent Functions on Finite Fields*
We present a new characterization of semi-bent and bent quadratic functions on finite fields. First, we determine when a GF(2)-linear combination of Gold functions Tr(x2i +1 ) is ...
Khoongming Khoo, Guang Gong, Douglas R. Stinson
COCOON
2007
Springer
14 years 2 months ago
"Resistant" Polynomials and Stronger Lower Bounds for Depth-Three Arithmetical Formulas
We derive quadratic lower bounds on the ∗-complexity of sum-of-products-of-sums (ΣΠΣ) formulas for classes of polynomials f that have too few partial derivatives for the techn...
Maurice J. Jansen, Kenneth W. Regan
MOC
2002
113views more  MOC 2002»
13 years 8 months ago
Computation of several cyclotomic Swan subgroups
Let Cl(OK [G]) denote the locally free class group, that is the group of stable isomorphism classes of locally free OK [G]-modules, where OK is the ring of algebraic integers in th...
Timothy Kohl, Daniel R. Replogle