Avant-Propos - Numéro 4 - 2006

Avant Propos

Avant-propos.

Kantorovitch's theorem gives su cient conditions for the convergence of Newton's method. We presenta full formalization of this theorem in the case of a real function. The work is accomplished inside the Coqproof assistant and it is based on the Reals library provided by the theorem prover. For the general case ofthe theorem we rst describe a way to represent concepts from multivari...

Numéro bibliothèque: ThèsedeDoctoratdel’universitéParisVI

The deployment of Self-Organizing Networks (SONs) raises a number of key design issues such as scalability, spontaneity, ease-of-management, adaptability, and dynamicallychanging topologies. In this context, routing is particularly challenging, and requires revisiting important components of the routing architecture/protocol suite, such as, establishing and managing an addressing scheme, provid...

Science Avant-Garde

o think that the neoimpressionists are painters who cover canvases with little multicolored spots is a rather widespread mistake, " wrote Paul Signac in his manifesto of their movement. " This mediocre dot method has nothing to do with the aesthetic of the painters we are defending here, nor with the technique of divisionism they use. " Signac was referring to, among others, Georges Seurat, who...

CBN 06 - 4 June , 2006

We summarize recent running experience at the Cornell Electron Storage Ring (CESR) operating as a highstatistics production-threshold factory for mesons containing charm quarks. Since beginning operation at beam energies near 2 GeV in late 2003, CESR has accumulated world-record samples of D and Ds meson decays and has also operated in an energy-scanning mode, making unique contributions to the...