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- Max Planck Institute for AstrophysicsDE7 papers
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17 papers · 1 filter
Unified picture for diluted magnetic semiconductors
Richard Bouzerar, Georges Bouzerar
For already a decade the field of diluted magnetic semiconductors (DMS) is one of the hottest. In spite of the great success of material specific Density Functional Theory (DFT) to…
Locally tame plane polynomial automorphisms
Joost Berson, Adrien Dubouloz, Jean-Philippe Furter +1
For automorphisms of a polynomial ring in two variables over a domain R, we show that local tameness implies global tameness provided that every 2-generated invertible R-module is…
Sampling of operators
Götz E. Pfander
Sampling and reconstruction of functions is a central tool in science. A key result is given by the sampling theorem for bandlimited functions attributed to Whittaker, Shannon, Nyq…
Particle Acceleration on Megaparsec Scales in a Merging Galaxy Cluster
R. J. van Weeren, H. J. A. Rottgering, M. Bruggen +1
Galaxy clusters form through a sequence of mergers of smaller galaxy clusters and groups. Models of diffusive shock acceleration (DSA) suggest that in shocks that occur during clus…
Representing Isabelle in LF
Florian Rabe
LF has been designed and successfully used as a meta-logical framework to represent and reason about object logics. Here we design a representation of the Isabelle logical framewor…
Homeomorphisms between limbs of the Mandelbrot set
Dzmitry Dudko, Dierk Schleicher
We prove that for every hyperbolic component of the Mandelbrot set, any two limbs with equal denominators are homeomorphic so that the homeomorphism preserves periods of hyperbolic…