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13 papers · 1 filter
Geometric renormalisation and Hausdorff dimension for loop-approximable geodesics escaping to infinity
Kurt Falk, Bernd O. Stratmann
The main result of this paper is to show that if $\H$ is a normal subgroup of a Kleinian group such that $G/\H$ contains a coset which is represented by some loxodromic element…
Theoretical prediction of topological insulator in ternary rare earth chalcogenides
Binghai Yan, Hai-Jun Zhang, Chao-Xing Liu +3
A new class of three-dimensional topological insulator, ternary rare earth chalcogenides, is theoretically investigated with ab initio calculations. Based on both bulk band structu…
Image sequence interpolation using optimal control
Kanglin Chen, Dirk A. Lorenz
The problem of the generation of an intermediate image between two given images in an image sequence is considered. The problem is formulated as an optimal control problem governed…
Boson Shells Harbouring Charged Black Holes
Burkhard Kleihaus, Jutta Kunz, Claus Lämmerzahl +1
We consider boson shells in scalar electrodynamics coupled to Einstein gravity. The interior of the shells can be empty space, or harbour a black hole or a naked singularity. We an…
A small gain condition for interconnections of ISS systems with mixed ISS characterizations
Sergey Dashkovskiy, Michael Kosmykov, Fabian Wirth
We consider interconnected nonlinear systems with external inputs, where each of the subsystems is assumed to be input-to-state stable (ISS). Sufficient conditions of small gain ty…
Notes on lattice points of zonotopes and lattice-face polytopes
Christian Bey, Martin Henk, Matthias Henze +1
Minkowski's second theorem on successive minima gives an upper bound on the volume of a convex body in terms of its successive minima. We study the problem to generalize Minkowski'…