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APPML
2004
125views more  APPML 2004»
15 years 6 months ago
A note on the controllability of higher-order linear systems
In this paper, a new condition for the controllability of higher order linear dynamical systems is obtained. The suggested test contains rank conditions of suitably defined matric...
Gregory Kalogeropoulos, Panayiotis Psarrakos
AUTOMATICA
2004
118views more  AUTOMATICA 2004»
15 years 6 months ago
Active state estimation of nonlinear systems
In this paper, state observers for control systems with nonlinear outputs are studied. For such systems, the observability does not only depend on the initial conditions, but also...
Xiaoming Hu, Torvald Ersson
MOC
2010
15 years 1 months ago
Choosing the correct elliptic curve in the CM method
We give an elementary way to distinguish between the twists of an ordinary elliptic curve E over Fp in order to identify the one with p+1-2U points, when p = U2 + dV 2 with 2U, 2V ...
Karl Rubin, Alice Silverberg
SIAMMA
2010
62views more  SIAMMA 2010»
15 years 1 months ago
Transmission Eigenvalues for Operators with Constant Coefficients
In this paper we study the interior transmission problem and transmission eigenvalues for multiplicative perturbations of linear partial differential operator of order 2 with cons...
Michael Hitrik, Katsiaryna Krupchyk, Petri Ola, La...
ASIACRYPT
2009
Springer
16 years 28 days ago
Linearization Framework for Collision Attacks: Application to CubeHash and MD6
In this paper, an improved differential cryptanalysis framework for finding collisions in hash functions is provided. Its principle is based on linearization of compression functi...
Eric Brier, Shahram Khazaei, Willi Meier, Thomas P...