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10 papers · 1 filter
Collisions of particles in locally AdS spacetimes I. Local description and global examples
Thierry Barbot, Francesco Bonsante, Jean-Marc Schlenker
We investigate 3-dimensional globally hyperbolic AdS manifolds containing "particles", i.e., cone singularities along a graph . We impose physically relevant conditions on the c…
Forever Young: Aging Control For Smartphones In Hybrid Networks
Eitan Altman, Rachid El-Azouzi, Daniel Sadoc Menasche +1
The demand for Internet services that require frequent updates through small messages, such as microblogging, has tremendously grown in the past few years. Although the use of such…
Rayleigh and depinning instabilities of forced liquid ridges on heterogeneous substrates
Philippe Beltrame, Edgar Knobloch, Peter Hänggi +1
Depinning of two-dimensional liquid ridges and three-dimensional drops on an inclined substrate is studied within the lubrication approximation. The structures are pinned to wettin…
Guessing Revisited: A Large Deviations Approach
Manjesh Kumar Hanawal, Rajesh Sundaresan
The problem of guessing a random string is revisited. A close relation between guessing and compression is first established. Then it is shown that if the sequence of distributions…
Pseudo-Anosov flows in toroidal manifolds
Thierry Barbot, Sergio Fenley
We first prove rigidity results for pseudo-Anosov flows in prototypes of toroidal 3-manifolds: we show that a pseudo-Anosov flow in a Seifert fibered manifold is up to finite cover…
On a theorem due to Birkhoff
Marie-Claude Arnaud
The manifold M being compact and connected, we prove that every submanifold of its cotangent bundle that is Hamiltonianly isotopic to the zero-section and that is invariant by a To…