2023 | MFO Report: The dry ten Martini problem for Sturmian dynamical systems | Ram Band, Siegfried Beckus, Raphael LoewyZeitschrift: Oberwolfach Reports - OWRLink zum Preprint
Spectral approximation of aperiodic Schrödinger operators
Friedrich-Schiller Universität Jena, October 2016
Generalized Bloch Theory for Quasicrystals
Friedrich-Schiller Universität Jena, February 2012
2023 | MFO Report: The dry ten Martini problem for Sturmian dynamical systems | Ram Band, Siegfried Beckus, Raphael LoewyZeitschrift: Oberwolfach Reports - OWRLink zum Preprint
2021 | Generalized eigenfunctions and eigenvalues: a unifying framework for Shnol-type theorems | Siegfried Beckus, Baptiste DevyverZeitschrift: Journal d'Analyse MathematiqueReihe: 146Seiten: 165-203Link zur Publikation , Link zum Preprint
2021 | Eigenfunctions growth and R-limits on Graphs | Siegfried Beckus, Latif EliazZeitschrift: Journal of Spectral TheoryReihe: 11Seiten: 1895-1933Link zur Publikation , Link zum Preprint
2020 | Spectral Continuity for Aperiodic Quantum Systems II. Applications of a folklore theorem | Siegfried Beckus, Jean Bellissard, Giuseppe De NittisZeitschrift: Journal of Mathematical PhysicsReihe: 61Link zur Publikation , Link zum Preprint
2019 | Hölder Continuity of the Spectra for Aperiodic Hamiltonians | Siegfried Beckus, Jean Bellissard, Horia CorneanZeitschrift: Annales Henri PoincaréReihe: 20Seiten: 3603 - 3631Link zur Publikation , Link zum Preprint
2019 | Corrigendum to “Spectral continuity for aperiodic quantum systems I. General theory | Siegfried Beckus, Jean Bellissard, Giuseppe De NittisZeitschrift: Journal of Functional AnalysisReihe: 277Seiten: 3351-3353Link zur Publikation , Link zum Preprint
2018 | Delone dynamical systems and spectral convergence | Siegfried Beckus, Felix PogorzelskiZeitschrift: Ergodic Theory and Dynamical SystemsReihe: 40Seiten: 1510-1544Link zur Publikation , Link zum Preprint
2018 | Shnol-type theorem for the Agmon ground state | Siegfried Beckus, Yehuda PinchoverZeitschrift: Journal of Spectral TheoryReihe: 10Seiten: 355 - 377Link zum Preprint
2018 | Spectral continuity for aperiodic quantum systems I. General theory | Siegfried Beckus, Jean Bellissard, Giuseppe De NittisZeitschrift: Journal of Functional AnalysisReihe: 275Seiten: 2917 - 2977Link zur Publikation , Link zum Preprint
2018 | Note on spectra of non-selfadjoint operators over dynamical system | Siegfried Beckus, Daniel Lenz,Marko Lindner,Christian SeifertZeitschrift: Proceedings of the Edinburgh Mathematical SocietyReihe: 61Seiten: 371 -386Link zur Publikation , Link zum Preprint
2017 | On the spectrum of operator families on discrete groups over minimal dynamical Systems | Siegfried Beckus, Daniel Lenz, Marko Lindner, Christian SeifertZeitschrift: Mathematische ZeitschriftReihe: 287Seiten: 993 - 1007Link zur Publikation , Link zum Preprint
2016 | Continuity of the Spectrum of a Field of Self-Adjoint Operators | Siegfried Beckus, Jean BellissardZeitschrift: Annales Henri PoincaréReihe: 17Seiten: 3425 - 3442Link zur Publikation , Link zum Preprint
2013 | Spectrum of Lebesgue Measure Zero for Jacobi Matrices of Quasicrystals | Siegfried Beckus, Felix PogorzelskiZeitschrift: Mathematical Physics, Analysis and GeometryReihe: 16Seiten: 289 -308Link zur Publikation , Link zum Preprint
University of Potsdam since 10/2018 Post-Doc with Prof. Dr. Matthias Keller
Israel Institute of Technology (Technion), Haifa 10/2016-09/2018 Postdoctoral Fellowship with Prof. Dr. Yehuda Pinchover and Prof. Dr. Ram Band
Georgia Institute of Technology, Atlanta, USA 02-04/2014 Visiting Student/Research Collaborator
Friedrich Schiller University Jena 03/2012-09/2016 PhD Student
PhD 10/2016, Friedrich Schiller University Jena
Diploma 02/2012, Friedrich Schiller University Jena
Marie-Weber-Grant 2022 "Aperiodische Ordnung: Die Entschlüsselung versteckter Strukturen" starting 09/2022 (PhD position for 1 year) - announcement by the Hans Böckler Stiftung
DFG Project "Periodic approximations of Schrödinger operators associated with quasicrystals" since 12/2018 (PostDoc position for 2 year and travel money)
ZiF Summer Camp 2020 Research stay at the Center of Interdisciplinary Research at the University Bielefeld, Bielefeld, Germany
Scholarship of the DAAD Program to participate at congresses, International Workshop on Operator Theory and its Applications, Lisbon, Portugal
Scholarship for "Research in Pairs" at the Mathematisches Forschungsinstitut Oberwolfach, Germany, 01/2018
Postdoctoral Fellowship Israel Institute of Technology (Technion), Haifa, Israel, 10/2016 - 09/2018
Scholarship of the DAAD Program to participate at congresses, XVIII International Congress on Mathematical Physics, Santiago de Chile, Chile
Funding for the PhD Seminar "Förderung von interdisziplinären Arbeitsgruppen und Nachwuchsnetzwerken" funded by the Graduierten-Akademie in Jena
Lior Tennenbaum (PhD thesis), joint with Prof. Ram Band (Israel Institute of Technology)
Alberto Takase (PhD thesis, joint with Prof. Anton Gorodetski (University of California Irvine)
Franziska Sieron (Master thesis), The density of periodic configurations in strongly irreducible subshifts of finite type (joint with Prof. Dr. Daniel Lenz), 2016
Daniel Sell (Master thesis), Topological groupoids and Matuis spatial realization theorem (joint with Prof. Dr. Daniel Lenz), 2015
Franziska Sieron (Bachelor thesis), The balanced property of primitive substitutions (joint with Prof. Dr. Daniel Lenz), 2014
Summer school on "Spectral theory and geometry of ergodic Schrödinger operators", Universität Potsdam, 07/2023-08/2023, Link
Workshop on "Functional Analysis, Operator Theory and Dynamical Systems", Universität Potsdam, 09/2022, Link
Euler-Lecture, Universität Potsdam, 05/2019, 05/2021, 05/2022, 05/2023, Link
PhD seminar, Friedrich-Schiller-Universität Jena, 03/2013 – 09/2016
Colloquium: "Job opportunities for mathematicians", Friedrich-Schiller-Universität Jena, 2013 – 2015
PhD symposium at the TU Chemnitz, within the Fall school Dirichlet forms, operator theory and mathematical physics, 02/2013