Minimum-variance estimators for the parameter fnl that quantifies local-model non-Gaussianity can be constructed from the cosmic microwave background (CMB) bispectrum (three-point function) and also from the trispectrum (four-point function). Some have suggested that a comparison between the estimates for the values of fnl from the bispectrum and trispectrum allow a consistency test for the mod...

Bespreking van een boek Max Cramer, Arie den Dikken, Anton Groot, Annette Koenders, Rob Marx, Ineke Marx-van Daal, Harry der Voort (red.)

Optimal performance of delay tracking loops in a binary linearly-modulated system is investigated, which is compared with the Cramer-Rao lower bound and the performance of a tracking loop suggested by the maximumlikelihood timing estimation.

This paper presents the solution of a general constrained matrix equation using generalized inverses and gives an explicit expression for the elements of the solution matrix using Cramer rule. 2003 Elsevier Inc. All rights reserved.

This article motivates the importance of public-key cryptosystems that are secure against chosen ciphertext attack, and of rigorous security proofs. It also discusses the new cryptosystem developed by Cramer and Shoup, and its relevance in this regard.

We present a public-key encryption scheme which is provably secure against adaptive chosen ciphertext attack. The scheme is constructed using Cramer-Shoup paradigm [7]. The security of the scheme is based on the Decisional Bilinear Diffie-Hellman problem.