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Workgroup on Number Theory and Algebraic Geometry

Kollegiengebäude Mathematik (20.30)
Room 1.027

Englerstraße 2, 76131 Karlsruhe

Office hours:
Mo - Fr, 9.15 - 11.45

Tel.: +49 721 608 43041

Fax.: +49 721 608 44244

Photo of Fabian Januszewski PD Dr. Fabian Januszewski

Office hour for students: jederzeit wenn ich da bin.
Room: 1.023 Kollegiengebäude Mathematik (20.30)
Tel.: +49 721 608 45886
Fax.: 0721 / 608 44244
Email: januszewski@kit.edu

Institut für Algebra und Geometrie
Englerstraße 2
76128 Karlsruhe

"Die Mathematiker sind eine Art Franzosen: redet man zu ihnen, so übersetzen sie es in ihre Sprache, und dann ist es alsobald ganz etwas anderes." (J.W.v. Goethe)

"... la mathématique est l’art de donner le même nom à des choses différentes." (H. Poincaré)

In the winter term 2017/2018 I had an interim professorship in https://www.mathi.uni-heidelberg.de/~fjanuszewski/ substituting Prof. Otmar Venjakob.
Since Summer term 2018 I am substituting Prof. Claus-Günther Schmidt.

Semester Titel Typ
Winter Semester 2018/19
Summer Semester 2018
Summer Semester 2017
Winter Semester 2016/17
Summer Semester 2016
Winter Semester 2015/16
Summer Semester 2015
Winter Semester 2014/15
Winter Semester 2013/14
Summer Semester 2013
Winter Semester 2012/13
Summer Semester 2012 Seminar


I am interested in Shimura varieties, automorphic representations, special values of L-functions, Iwasawa theory, and representation theory.

Publications and Preprints

M. Dimitrov, F. Januszewski and A. Raghuram, "L-functions of GL(2n): p-adic properties and nonvanishing of twists", arXiv, 41 pages.

F. Januszewski, "Non-abelian p-adic Rankin-Selberg L-functions and non-vanishing of central L-values", arXiv, 57 pages, submitted.

F. Januszewski, "On Period Relations for Automorphic L-functions II", arXiv, 65 pages, submitted.

F. Januszewski, "On Period Relations for Automorphic L-functions I", arXiv, to appear in Transactions of the American Mathematical Society, 42 pages.

F. Januszewski, "Algebraic Characters of Harish-Chandra modules and Arithmeticity", arXiv, 65 pages.

F. Januszewski, "Rational Structures on Automorphic Representations", Mathematische Annalen 370 (2018), 1805-1881.

F. Januszewski, "p-adic L-functions for Rankin-Selberg convolutions over number fields", Annales mathématiques du Québec (2016) 40, special issue in honor of Glenn Steven's 60th Birthday, 453-489.

F. Januszewski, "On Deligne's Conjecture on Special Values of L-functions", Habilitationsschrift, 2015.

F. Januszewski, "On p-adic L-functions for GL(n)xGL(n-1) over totally real fields", International Mathematics Research Notices, Vol. 2015, No. 17, 7884-7949.

F. Januszewski, "Algebraic characters of Harish-Chandra modules", Journal of Lie Theory 24 (2014), No. 4, 1161-1206.

F. Januszewski, "Modular symbols for reductive groups and p-adic Rankin-Selberg convolutions over number fields", Journal für die reine und angewandte Mathematik 653 (2011), 1-45.

F. Januszewski, "p-adische Rankin-Selberg-Faltungen", Dissertation, Universität Karlsruhe (TH), 2009.

W. Geiselmann, F. Januszewski, H. Köpfer, J. Pelzl, and R. Steinwandt
"A Simpler Sieving Device: Combining ECM and TWIRL"
9th International Conference on Information Security and Cryptology - ICISC 2006,
Lecture Notes in Computer Science 4296, Springer, 2006.

Talks and Lectures

Number Theory Seminar, National Taiwan University, Taiwan, 03/2016
p-adic Hodge theory and Iwasawa theory, Universität Bielefeld, Germany, 09/2015
Number Theory Seminar, Osaka University, Japan, 07/2015
Lie Groups and Representation Theory Seminar, University of Tokyo, Japan, 07/2015
Number Theory Seminar, Kyoto University, Japan, 07/2015
Séminaire Géométrie Arithmétique et Motivique, Université Paris 13, 01/2015
Fonctions L Automorphes, Univerité Lille 1, France, 10/2014
Morningside Center of Mathematics, Beijing, China, 09/2014
p-adic Aspects of Modular Forms, IISER Pune, India, 06/2014
Winter School on Representation Theory of Reductive Groups, University of Tokyo, Japan, 02/2014
Arithmetic Geometry Seminar, Bielefeld, 11/2013
NCTS Number Theory Seminar, National Taiwan University, Taiwan, 09/2013
Modular forms, p-adic L-functions and Selmer groups, Sofia/Oriahovitza, Bulgaria, 07/2013
Representation Theory and Applications, a Conference in Honor of Roger Howe, Yeditepe University, Istanbul, 06/2013
Séminaire de Théorie des Nombres, Université de Bordeaux, 03/2013
Weihnachtsworkshop on Geometry and Number Theory 2012 in Honor of Frank Herrlich, KIT, 12/2012
TIMS Seminar on Arithmetic Geometry, National Taiwan University, 03/2012
University of Oklahoma Karcher Colloquium, 03/2012
Caltech Number Theory Seminar, 02/2012
Geometric Group Theory Seminar, KIT, 11/2011
UCLA Number Theory Seminar, 10/2011
Oklahoma State University Colloquium, 09/2011
Conference Modular/Geometric Iwasawa Theory and p-adic L-functions, UCLA, 06/2010
UCLA Number Theory Seminar, 05/2010
Weihnachtsworkshop on Geometry and Number Theory, Universität Karlsruhe (TH), 12/2008
Séminaire Géométrie Arithmétique et Motivique, Université Paris 13, 06/2007
9th International Conference on Information Security and Cryptology, Busan, 11/2006