Preprint on special values of p-adic L-functions and Iwasawa λ-invariants of Dirichlet characters
We study the Iwasawa λ-invariant of Dirichlet characters χ for odd primes p and derive easily computable novel criteria to distinguish …
Paper on Iwasawa lambda-invariants for abelian number fields
In a joint paper with Daniel Delbourgo, we study we study the Iwasawa lambda-invariants of Dirichlet characters of any order and …
Top 10 position for TH Köln Team
The TH Köln team from the Institute of Communications Engineering made it into the Top 10 of the international Telekom Challenge …
Paper on Dirichlet Series Expansions of p-adic L-Functions
In a joint paper with Lawrence C. Washington, we derive a Dirichlet series expansion of p-adic L-functions. The paper is published in …
Sicherheit und Fairness von Online-Prüfungen
Online-Prüfungen sind die Achillesferse des Lehrbetriebs unter Pandemiebedingungen.
Preprint on Measures and p-adic L-Functions
We define an alternating measure on the p-adic integers and derive a Dirichlet expansion of p-adic L-functions.
A Course in Cryptography
Neues Buch über Kryptographie mit den wichtigsten modernen Verfahren und einem Ausblick auf die Post-Quantum Kryptographie.
The p-adic integers and their topology
We show pictures of the p-adic integers for p=3, p=5 and p=7.
Erhebliche Mathematikdefizite bei Studienanfängern
Schwache Mathematik Kenntnisse vieler Studienanfänger der MINT Fächer.
