36 citations · 78 across the 16 of their papers we have counts for
18 papers
A Plaque Test for Redundancies in Relational Data [Extendend Version]
Christoph Köhnen, Stefan Klessinger, Jens Zumbrägel +1
Inspired by the visualization of dental plaque at the dentist's office, this article proposes a novel visualization of redundancies in relational data. Our approach is based on a w…
Cryptographic Group and Semigroup Actions
Oliver W. Gnilke, Jens Zumbrägel
We consider actions of a group or a semigroup on a set, which generalize the setup of discrete logarithm based cryptosystems. Such cryptographic group actions have gained increasin…
List Decoding of Quaternary Codes in the Lee Metric
Marcus Greferath, Jens Zumbrägel
We present a list decoding algorithm for quaternary negacyclic codes over the Lee metric. To achieve this result, we use a Sudan-Guruswami type list decoding algorithm for Reed-Sol…
Computation of a 30750-Bit Binary Field Discrete Logarithm
Robert Granger, Thorsten Kleinjung, Arjen K. Lenstra +2
This paper reports on the computation of a discrete logarithm in the finite field , breaking by a large margin the previous record, which was set in January…
Towards Collaborative Conceptual Exploration
Tom Hanika, Jens Zumbrägel
In domains with high knowledge distribution a natural objective is to create principle foundations for collaborative interactive learning environments. We present a first mathemati…
The Extension Theorem for Bi-invariant Weights over Frobenius Rings and Frobenius Bimodules
Oliver W. Gnilke, Marcus Greferath, Thomas Honold +2
We give a sufficient condition for a bi-invariant weight on a Frobenius bimodule to satisfy the extension property. This condition applies to bi-invariant weights on a finite Frobe…