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» The Proof Complexity of Linear Algebra
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JLP
2006
56views more  JLP 2006»
13 years 7 months ago
Linearization of hybrid processes
We present an algorithm for the linearization of hybrid processes modeled in hybrid process algebra (HyPA) and prove its correctness. HyPA is a formalism that is suitable for the ...
P. C. W. den Brand van, Michel A. Reniers, Pieter ...
DAGSTUHL
2006
13 years 9 months ago
New Algebraic Tools for Constraint Satisfaction
Abstract. The Galois connection involving polymorphisms and coclones has received a lot of attention in regard to constraint satisfaction problems. However, it fails if we are inte...
Henning Schnoor, Ilka Schnoor
DCG
2007
58views more  DCG 2007»
13 years 7 months ago
Harmonic Algebraic Curves and Noncrossing Partitions
Motivated by Gauss’s first proof of the Fundamental Theorem of Algebra, we study the topology of harmonic algebraic curves. By the maximum principle, a harmonic curve has no bou...
Jeremy L. Martin, David Savitt, Ted Singer
CASC
2009
Springer
157views Mathematics» more  CASC 2009»
14 years 2 months ago
On the Complexity of Reliable Root Approximation
This work addresses the problem of computing a certified ǫ-approximation of all real roots of a square-free integer polynomial. We proof an upper bound for its bit complexity, b...
Michael Kerber
CTRSA
2009
Springer
155views Cryptology» more  CTRSA 2009»
14 years 2 months ago
Cryptanalysis of CTC2
CTC is a toy cipher designed in order to assess the strength of algebraic attacks. While the structure of CTC is deliberately weak with respect to algebraic attacks, it was claimed...
Orr Dunkelman, Nathan Keller