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- Carl von Ossietzky Universität OldenburgDE10 papers
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4 papers · 1 filter
Reconstruction of universal Drinfeld twists from representations
Christian Blohmann
Universal Drinfeld twists are inner automorphisms which relate the coproduct of a quantum enveloping algebra to the coproduct of the undeformed enveloping algebra. Even though they…
spectra in elementary cellular automata and fractal signals
Jan Nagler, Jens Christian Claussen
We systematically compute the power spectra of the one-dimensional elementary cellular automata introduced by Wolfram. On the one hand our analysis reveals that one automaton displ…
Lie Algebra Prederivations and strongly nilpotent Lie Algebras
Dietrich Burde
We study Lie algebra prederivations. A Lie algebra admitting a non-singular prederivation is nilpotent. We classify filiform Lie algebras admitting a non-singular prederivation but…
Hyperbolic Components in Exponential Parameter Space
Dierk Schleicher
We discuss the space of complex exponential maps $\Ek\colon z\mapsto e^{z}+κ$. We prove that every hyperbolic component has connected boundary, and there is a conformal isomorp…