Fabian Dreher

Fabian Dreher
University of Bremen | Uni Bremen · Faculty 03: Mathematics/Computer Science

Dr. rer. nat.

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6
Publications
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Publications (6)
Article
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At the turn of this century Durand, and Lagarias and Pleasants established that key features of minimal subshifts (and their higher-dimensional analogues) to be studied are linearly repetitive, repulsive and power free. Since then, generalisations and extensions of these features, namely $\alpha$-repetitive, $\alpha$-repulsive and $\alpha$-finite (...
Preprint
At the turn of this century Durand, and Lagarias and Pleasants established that key features of minimal subshifts (and their higher-dimensional analogues) to be studied are linearly repetitive, repulsive and power free. Since then, generalisations and extensions of these features, namely $\alpha$-repetitive, $\alpha$-repulsive and $\alpha$-finite (...
Article
In this paper escape rates and local escape rates for special flows are sudied. In a general context the first result is that the escape rate depends monotonically on the ceiling function and fulfills certain scaling, invariance, and continuity properties. For the metric setting local escape rates are considered. If the base transformation is ergod...
Preprint
In this paper escape rates and local escape rates for special flows are sudied. In a general context the first result is that the escape rate depends monotonically on the ceiling function and fulfills certain scaling, invariance, and continuity properties. For the metric setting local escape rates are considered. If the base transformation is ergod...
Article
This thesis examines escape rates for suspension flows with a hole, focusing on the relation between the escape rate and the ceiling function. It is shown that the escape rate depends continuously on the ceiling function with regard to the supremum norm, that the reciprocal of the escape rate is sublinear if the base transformation of the flow is a...
Article
The Hausdorff-Alexandroff Theorem states that any compact metric space is the continuous image of Cantor's ternary set $C$. It is well known that there are compact Hausdorff spaces of cardinality equal to that of $C$ that are not continuous images of Cantor's ternary set. On the other hand, every compact countably infinite Hausdorff space is a cont...

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