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15 papers · 1 filter
Raising galaxy rotation curves via dressing
J. François, L. Ravera
We present a manifestly diffeomorphism-invariant simple model of galaxy dynamics obtained by applying the Dressing Field Method (DFM) to a general-relativistic system comprising th…
Analysis of Input-Output Mappings in Coinjoin Transactions with Arbitrary Values
Jiri Gavenda, Petr Svenda, Stanislav Bobon +1
A coinjoin protocol aims to increase transactional privacy for Bitcoin and Bitcoin-like blockchains via collaborative transactions, by violating assumptions behind common analysis…
A Yin-Yang Galaxy Cluster Merger in Abell 1914 Revealed by XRISM
Annie Heinrich, Congyao Zhang, Irina Zhuravleva +4
Hierarchical mergers of galaxy clusters play a key role in converting gravitational energy into thermal and kinetic energy in the local universe. Understanding this process require…
Process-Driven Visual Analysis of Cybersecurity Capture the Flag Exercises
Radek Ošlejšek, Radoslav Chudovský, Martin Macak
Hands-on training sessions become a standard way to develop and increase knowledge in cybersecurity. As practical cybersecurity exercises are strongly process-oriented with knowled…
Sound Value Iteration for Simple Stochastic Games
Muqsit Azeem, Jan Kretinsky, Maximilian Weininger
Algorithmic analysis of Markov decision processes (MDP) and stochastic games (SG) in practice relies on value-iteration (VI) algorithms. Since basic VI does not provide guarantees…
The Status of the Astrophysical Parameters of Upper Main Sequence Stars
Lukas Kueß, Ernst Paunzen
Calibrating the ages, masses, and radii of stars on the upper main sequence depends heavily on accurate measurements of the effective temperature () and surface gra…