About Me
Steffen Löbrich
I am a postdoc at University of Amsterdam working with Miranda Cheng.
I completed my PhD in Mathematics at University of Cologne under of the supervision of Kathrin Bringmann.
My research interests lie in number theory, especially modular forms and harmonic Maass forms and their connections to arithmetic geometry and mathematical physics.
Contact
 email s.loebrich(at)uva(dot)nl

home
Kortewegde Vries Institute for Mathematics
University of Amsterdam
Visiting address:
Science Park 105107
Room F3.11
Postal address:
P.O. Box 94248
1090 GE Amsterdam
The Netherlands
Research
 attach_file On Divisors of Modular Forms with Kathrin Bringmann, Ben Kane, Ken Ono, and Larry Rolen, Advances in Mathematics 329 (2018), pp. 541554.
 attach_file NieburPoincaré Series and Traces of Singular Moduli, Journal of Mathematical Analysis and Applications 465 (2018), pp. 673689.
 attach_file Special Values of Motivic LFunctions and ZetaPolynomials for Symmetric Powers of Elliptic Curves with Wenjun Ma and Jesse Thorner, Research in the Mathematical Sciences 4 (2017), Art. 26, 16.
 attach_file Linear Incongruences for Generalized EtaQuotients, Research in Number Theory 3 (2017), Art. 18, 8.
 attach_file Radial Limits of the Universal Mock Theta Function g_3 with MinJoo Jang, Proceedings of the American Mathematical Society 145 (2017), pp. 925935.
 attach_file A Gap in the Spectrum of the Faltings Height, Journal de Théorie des Nombres de Bordeaux 29 (2017), no. 1, pp. 289305.
 attach_file Numbertheoretic generalization of the Monster denominator formula with Kathrin Bringmann, Ben Kane, Ken Ono, and Larry Rolen, Journal of Physics A: Mathematical and Theoretical 50 (2017), 473001.
Articles
Surveys
Activities
 public Mar 2019, Modularity and 3manifolds, workshop at Brown University in Providence, RI.
 public Jul 2018, Building Bridges, summer school and workshop at Alfréd Rényi Institute of Mathematics in Budapest.
 public May 2018, Modular Forms and Beyond, school and research conference at Euler International Mathematical Institute in St. Petersburg.
 public Mar 2018, Modular Forms and Quantum Knot Invariants, workshop at BIRS in Banff.
 public Nov 2017, 3rd JapaneseGerman Number Theory Workshop at Max Planck Institute for Mathematics in Bonn.
 public May 2017, Modular Forms are Everywhere, summer school and conference at Max Planck Institute for Mathematics in Bonn.
 public Nov 2016, Spectral Theory, Automorphic Forms and Arithmetic, workshop at University of Copenhagen.
 public Mar 2016, The 2016 Gainesville International Number Theory Conference at University of Florida in Gainesville.
 public May 2015, Automorphic Forms: Advances and Applications, conference at CIRM in Luminy.
 public FebJun 2016, Fulbright visiting scholar with Ken Ono at Emory University, Atlanta.
 public FebApr 2015, Cologne Young Researchers in Number Theory Program 2015 by Larry Rolen at University of Cologne.
Conferences
Programs
Talks
 smsMay 2019, On Cycle Integrals of Meromorphic Modular Forms at Linfoot Number Theory Seminar at University of Bristol.
 smsApr 2019, On Cycle Integrals of Meromorphic Modular Forms at Intercity Number Theory Seminar at University of Amsterdam.
 smsJan 2019, On Cycle Integrals of Meromorphic Modular Forms at Cologne Number Theory Seminar at University of Cologne.
 smsJul 2018, Traces of Singular Moduli and Regularized Inner Products at Building Bridges Workshop at Alfréd Rényi Institute of Mathematics in Budapest.
 smsFeb 2018, Weight 2 Modular Forms Associated to Quadratic Forms at Arithmetic and Algebraic Geometry Seminar at University of Amsterdam.
 smsDec 2017, On Divisors, Congruences, and Symmetric Powers of Modular Forms, PhD defense at University of Cologne.
 smsNov 2017, NieburPoincaré Series and Regularized Inner Products at 3rd JapaneseGerman Number Theory Workshop at MPIM Bonn.
 smsAug 2016, Critical Values of Motivic LFunctions at Number Theory Lunch Seminar at MPIM Bonn.
 smsMay 2016, Radial Limits of a Universal Mock Theta Function at Combinatorics/Partitions Seminar at Pennsylvania State University.
 smsMar 2016, NieburPoincaré Series and Traces of Singular Moduli at 2016 Gainesville International Number Theory Conference.
 smsSep 2015, Radial Limits of a Universal Mock Theta Function at Discoverers avant le PhD (DISCO) at MPIM Bonn.
 smsDec 2014, A Gap in the Spectrum of the Faltings Height at AGSeminar Algebra at TU Darmstadt.
Teaching

schoolBachelor students:
 Daan Bos (current)
 Thijs Blom (Latticebased cryptography, 2018)
 Mats Eertink (The RogersRamanujan continued fraction, 2018)
 Donny Peeters (Feynman amplitudes, 2018)
 school WS 201819, Vector Calculus, lecture at Amsterdam University College
 schoolWS 201617, Coorganizer for Mathematik für Lehramtsstudierende I (Mathematics for Teachers I) at University of Cologne
 schoolWS 201516, Coorganizer for student seminar Jacobiformen at University of Cologne

schoolCoadvised Bachelor students:
 Marcel Japes (2017)
 Max Müller (2015)