Publications (15)
The cold origin of the warm dust around epsilon Eridani
Martin Reidemeister, Alexander V. Krivov, Christopher C. Stark +3
Context: The K2V star eps Eri hosts one known inner planet, an outer Kuiper belt analog, and an inner disk of warm dust. Spitzer/IRS measurements indicate that the warm dust is pre…
Infinite excursions of rotor walks on regular trees
Sebastian Mueller, Tal Orenshtein
A rotor configuration on a graph contains in every vertex an infinite ordered sequence of rotors, each is pointing to a neighbor of the vertex. After sampling a configuration accor…
The critical Branching Markov Chain is transient
Nina Gantert, Sebastian Mueller
We investigate recurrence and transience of Branching Markov Chains (BMC) in discrete time. Branching Markov Chains are clouds of particles which move (according to an irreducible…
Renewal theory for random walks on surface groups
Peter Haissinsky, Pierre Mathieu, Sebastian Mueller
We construct a renewal structure for random walks on surface groups. The renewal times are defined as times when the random walks enters a particular type of a cone and never leave…
Sublimation Temperature of Circumstellar Dust Particles and Its Importance for Dust Ring Formation
Hiroshi Kobayashi, Hiroshi Kimura, Sei-ichiro Watanabe +2
Dust particles in orbit around a star drift toward the central star by the Poynting-Robertson effect and pile up by sublimation. We analytically derive the pile-up magnitude, adopt…
Beyond Pretty Pictures: Combined Single- and Multi-Image Super-resolution for Sentinel-2 Images
Aditya Retnanto, Son Le, Sebastian Mueller +4
Super-resolution aims to increase the resolution of satellite images by reconstructing high-frequency details, which go beyond naïve upsampling. This has particular relevance for…