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IWSEC
2010
Springer
13 years 8 months ago
Differential Addition in Generalized Edwards Coordinates
We use two parametrizations of points on elliptic curves in generalized Edwards form x2 + y2 = c2 (1 + dx2 y2 ) that omit the xcoordinate. The first parametrization leads to a diff...
Benjamin Justus, Daniel Loebenberger
COLT
2010
Springer
13 years 9 months ago
Mansour's Conjecture is True for Random DNF Formulas
In 1994, Y. Mansour conjectured that for every DNF formula on n variables with t terms there exists a polynomial p with tO(log(1/)) non-zero coefficients such that Ex{0,1}n [(p(x)...
Adam R. Klivans, Homin K. Lee, Andrew Wan
JMLR
2002
117views more  JMLR 2002»
13 years 10 months ago
Learning to Construct Fast Signal Processing Implementations
A single signal processing algorithm can be represented by many mathematically equivalent formulas. However, when these formulas are implemented in code and run on real machines, ...
Bryan Singer, Manuela M. Veloso
CORR
2002
Springer
123views Education» more  CORR 2002»
13 years 10 months ago
Survey propagation: an algorithm for satisfiability
: We study the satisfiability of randomly generated formulas formed by M clauses of exactly K literals over N Boolean variables. For a given value of N the problem is known to be m...
Alfredo Braunstein, Marc Mézard, Riccardo Z...
JSYML
2007
85views more  JSYML 2007»
13 years 10 months ago
Lower bounds for modal logics
We give an exponential lower bound on number of proof-lines in the proof system K of modal logic, i.e., we give an example of K-tautologies 1, 2, . . . s.t. every K-proof of i must...
Pavel Hrubes
TSP
2008
118views more  TSP 2008»
13 years 10 months ago
Approximating Functions From Sampled Fourier Data Using Spline Pseudofilters
Recently, new polynomial approximation formulas were proposed for the reconstruction of compactly supported piecewise smooth functions from Fourier data. Formulas for zero and firs...
Ana Gabriela Martínez, Alvaro R. De Pierro
SLOGICA
2008
77views more  SLOGICA 2008»
13 years 10 months ago
Frame Based Formulas for Intermediate Logics
In this paper we define a new notion of frame based formulas. We show that the well-known examples of formulas arising from a finite frame, such as the Jankov-de Jongh formulas, s...
Nick Bezhanishvili
JSYML
2006
79views more  JSYML 2006»
13 years 10 months ago
Local-global properties of positive primitive formulas in the theory of spaces of orderings
f spaces of signs (abstract real spectra) developed in [1] [18]. We consider pp (positive primitive) formulas in the language of reduced special groups as in [20]. We denote the pp...
M. Marshall
JSYML
2008
73views more  JSYML 2008»
13 years 11 months ago
Examining fragments of the quantified propositional calculus
When restricted to proving q i formulas, the quantified propositional proof system G i is closely related to the b i theorems of Buss's theory Si 2. Namely, G i has polynomial...
Steven Perron
APAL
2006
113views more  APAL 2006»
13 years 11 months ago
Coding by club-sequences
Given any subset A of 1 there is a proper partial order which forces that the predicate x A and the predicate x 1\A can be expressed by ZFC
David Asperó