Blar i NTNU Open på forfatter "Kouroupis, Athanasios"
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Aspects of Dirichlet series: Composition operators, Bohr’s theorem and universality
Kouroupis, Athanasios (Doctoral theses at NTNU;2024:181, Doctoral thesis, 2024) -
COMPOSITION OPERATORS AND GENERALIZED PRIMES
Kouroupis, Athanasios (Peer reviewed; Journal article, 2023) -
Composition operators on weighted Hilbert spaces of Dirichlet series
Kouroupis, Athanasios; Perfekt, Karl-Mikael (Peer reviewed; Journal article, 2023) -
An extension of Bohr's theorem
Brevig, Ole Fredrik; Kouroupis, Athanasios (Peer reviewed; Journal article, 2024) -
A note on Bohr’s theorem for Beurling integer systems
Broucke, Frederik; Kouroupis, Athanasios; Perfekt, Karl-Mikael (Journal article; Peer reviewed, 2023)Given a sequence of frequencies , a corresponding generalized Dirichlet series is of the form . We are interested in multiplicatively generated systems, where each number arises as a finite product of some given ... -
Picard's little theorem
Talgø, Nils Phillip (Bachelor thesis, 2024)Denne oppgaven gir et bevis av Picard's lille teorem ved å bruke en modulær funksjon, analytisk fortsettelse og Liouville's teorem. Etter noen nødvendige forberedelser, starter vi konstruksjonen av den modulære funksjonen ...