Principal Investigator
Harald GROBNER, Faculty of Mathematics, University of Vienna, Austria
Email: harald.grobner@univie.ac.at
Homepage: https://homepage.univie.ac.at/harald.grobner/
My main scientific interests are located within the area of automorphic forms, in particular cohomological ones, and their applications to number theory. I am particularly interested in the arithmetic and analytic theory of L-functions. This includes local and global representation theory and aspects in the geometry of arithmetically defined varieties.
TEAM-MEMBERS (Past/present):
Johannes DROSCHL, Postdoc
Duration: 1.2. ’25 – 30.9. ’25
Email: johannes.carl.droschl@univie.ac.at
Homepage: https://homepage.univie.ac.at/johannes.carl.droschl/
Adel BETINA, Postdoc
Duration: 1.10. ’24 – 31.8. ’25
Email: adelb89@univie.ac.at
Homepage: https://sites.google.com/view/adelbetina/accueil
Mohamed EZ-ZARRAQ, PhD-Student
Duration: 1.10. ’24 – 30.9. ’27
Email: mohamed.ez.zarraq@univie.ac.at
Laura CHALABI, Master student
Duration: 1.2. ’24 – 30.9. ’24
Email: laura.chalabi@univie.ac.at
Homepage: https://artscience.uni-ak.ac.at/people?personen_id=1715740933383
Research-stays AND TALKS (past/present):
M.E-Z., participation at the Workshop “Arithmetica Transalpina” (F Andreatta, H Grobner, D Loeffler, M Longo, S Vigni, S Zerbes) at the Univeristy of Vienna (Vienna, Austria) May 22, 2026
M.E-Z., research stay at the University of Sevilla (Host: A Mínguez) (Sevilla, Spain) Feb 8 – 14, 2026
M.E-Z., participation at the Research School “Galois representations and automorphic forms” (A-M Aubert, P Colmez, J-P Labesse, S Riche, P Scholze) at CIRM (Marseille, France) Jan 24 -31, 2026
H.G., participation in the “SFB Lecture “Higher Invariants: Interactions between Arithmetic Geometry and Global Analysis” of the University of Regensburg (Regensburg, Germany) Nov 18, 2025 Talk: “New phenomena in the cohomology of SL(n,Z)”
M.E-Z., participation at the Workshop “Arithmetica Transalpina” (F Andreatta, H Grobner, D Loeffler, M Longo, S Vigni, S Zerbes) at the UniDistance Suisse (Brig, Swizzerland) Oct 17, 2025
H.G., organization of and participation at the Workshop “Arithmetica Transalpina” (together with F Andreatta, D Loeffler, M Longo, S Vigni, S Zerbes) at the UniDistance Suisse (Brig, Swizzerland) Oct 17, 2025
H.G. & M. E-Z., participation at the Conference “Eisenstein Series, Spaces of Automorphic Forms, and Applications” (N Grbac, M Hanzer, S S Kudla, J Schwermer) at the Erwin Schrödinger International Institute for Mathematics and Physics (Vienna, Austria) Sept 1 – Sept 5, 2024
Talk (H.G.): On Deligne’s Conjecture for automorphic motives over CM-fields
J.D., participation in the Summer School “LMS Summer School on the theta correspondence” (S Stevens, J Trias) at University of East Anglia (Norwich, UK) July 7 – July 11, 2025
J.D., participation at the Workshop “Alpach 2025″ (J Ayoub, C Fuchs, P Habegger, R Pink, S Zerbes) at Böglerhof (Alpbach, Austria) June 25 – June 30, 2025
M.E-Z., participation at the Workshop “Arithmetica Transalpina” (F Andreatta, H Grobner, D Loeffler, M Longo, S Vigni, S Zerbes) at the University of Genova (Genova, Italy) May 23, 2025
H.G., organization of and participation at the Workshop “Arithmetica Transalpina” (together with F Andreatta, D Loeffler, M Longo, S Vigni, S Zerbes) at the University of Genova (Genova, Italy) May 23, 2025
J.D., participation at the “Arbeitsgemeinschaft: Relative Langlands Duality” (D Ben-Zvi, Y Sakellaridis, A Venkatesh) at the MFO (Oberwolfach, Germany) March 30 – April 4, 2025
H.G., participation in the seminar “Analytic Number Theory and Representation Theory” of the Alfréd Rényi Institute of Mathematics (Budapest, Hungary) March 25, 2025
Talk: On the cohomology of SL(n,Z) right outisde the stable range
A.B., participation at the Workshop “Young Researchers in Galois Representations” (L Mastella, S Vigni) at the University of Genova (Genova, Italy) Jan 20 – Jan 23, 2025
Talk: Eigenvarieties for non-cuspidal automorphic forms over PEL Shimura varieties.
A.B., participation at the Seminar of the U Paderborn (Paderborn, Germany) Dec 15 – Dec 21, 2024
Talk: Eigenvarieties for non-cuspidal automorphic forms over PEL Shimura varieties.
A.B., participation at the Colloquium of the École National Supérieure de Mathématiques (Alger, Algeria) Nov 25 – Nov 28, 2024
Talk: The eigencurve and Iwasawa theory.
M.E-Z., participation at the Workshop “Arithmetica Transalpina” (F Andreatta, H Grobner, D Loeffler, M Longo, S Vigni, S Zerbes) at the University of Milan (Milan, Italy) Nov 15, 2024
H.G., organization of and participation at the Workshop “Arithmetica Transalpina” (together with F Andreatta, D Loeffler, M Longo, S Vigni, S Zerbes) at the University of Milan (Milan, Italy) Nov 15, 2024
A.B., participation in the “Séminaire Algèbre et Théorie des Nombres” of the University de Franche-Comté (Besançon, France) Nov 10 – Nov 13, 2024
Talk: Géométrie des variétés de Hecke et théorie d’Iwasawa
H.G., participation at the “International Seminar on Automorphic Forms” (C Burrin, L Garcia, Y Li, R Zuffetti), online Oct 22, 2024
Talk: On the cohomology of SL(n,Z) beyond the “stable range”
A.B., participation at the GALF annual meeting (D Benoit, M Dimitrov) at CIRM (Luminy, France) Oct 7 – Oct 11, 2024
Talk: Eigenvarieties for non-cuspidal automorphic forms over PEL Shimura varieties.
H.G., participation at the Conference “Representations of p-adic Groups and the Langlands Correspondence, in honor of Colin Bushnell” (F Diamond, G Henniart, B Romano, S Stevens) at the King’s College London (London, UK), Sept 2 – Sept 4, 2024
H.G., participation at the Conference “Periods in algebraic geometry and automorphic forms” (F Brown, B Klingler, Y Sakellaridis), 6th Nisyros conference on Automorphic Representations & related topics (Nisyros, Greece), July 22 – July 27, 2024
H.G., participation at the Conference “The Quest for the Hidden Simplicity of Noncommutative Harmonic Analysis and Representation Theory – a conference celebrating the 70th birthday of Marko Tadić” (N Grbac, M Hanzer, I Matić, G Muić), at the University of Zagreb (Zagreb, Croatia) June 24 – June 28, 2024
Talk: On the cohomology of SL(n,Z) beyond the stable range
H.G. & L.C., participation at the Workshop “Arithmetica Transalpina”, (F Andreatta, D Loeffler, M Longo, S Zerbes), at the UniDistance Suisse (Brig, Swizzerland) May 17, 2024
Talk: On the existence of CM-motives and Deligne’s conjecture for motivic L-functions
H.G., participation in the “Number Theory Seminar” of the University of Copenhagen (Copenhagen, Denmark) May 10, 2024
Talk: On the cohomology of SL(n,Z) beyond the stable range
International Collaboration Partners
A. Betina
R. Beuzart-Plessis
P. Boisseau
N. Grbac
M. Harris
J. Lin
S. Mundy
A. Raghuram
S. Žunar Kožić
