CRM-ISM Postdoctoral Fellow

Office: 1242 Burnside HallDepartment of Mathematics and Statistics

McGill University

805 Sherbrooke St. West

Montreal, Quebec

Canada H3A 0B9

Email: stephan.ehlen [at] mcgill.ca

- Number Theory
- Modular Forms, Automorphic Forms
- LMFDB

- Winter 2016: Introduction to modular forms
- July 2015: Math 141 - Calculus 2, Mo-Thu, 8:35-10:55, BURN 1B36, myCourses, WebWork
- Fall 2014: Math 223 - Linear Algebra

- Alberta Number Theory Days VII , June 12-14, 2015 (Banff, AB)
- Automorphic forms: advances and applications, May 25-29, 2015, CIRM, Luminy, France
- Harmonic Maass forms and arithmetic applications, lecture series (w. Yingkun Li), April 2015, KIAS, Seoul, Korea
- The Kudla programme, April 6-10, 2015, CRM, Montreal, Canada
- Number Theory: From Arithmetic Statistics to Zeta elements, September 2014 - April 2015, CRM, Montreal, Canada
- Building Bridges: 2nd EU/US Summer School + Workshop on Automorphic Forms and Related Topics, July 30 - August 11, 2014, Bristol, UK
- LMFDB Workshop, June 2 - 6, 2014, Warwick, UK
- Modular Forms, April 27 - May 3, 2014, MFO, Oberwolfach, Germany
- Heights and Moduli Spaces, June 10-14, 2013, Lorentz Center, Netherlands
- The Bellairs Workshop in Number Theory, May 3-10, 2013, Bellairs Research Institute, Barbados
- Automorphic Forms and L-Functions, March 17-19, 2013, Darmstadt, Germany
- Building Bridges: 1st EU-US conference on Automorphic Forms and related topics, Summer School and Conference, July 30 - August 8, 2012, Aachen, Germany
- Arithmetic geometry of orthogonal and unitary Shimura varieties, June 3-8, 2012, Banff, Canada
- 26th Automorphic Forms Workshop (2012), April 26-29, 2012, Vancouver, Canada
- Symposium:Modular Forms, Mock Theta Functions, and Applications, February 27 - March 3, 2012, Cologne, Germany
- Student Conference on Automorphic Forms, October 11-13, 2011, Darmstadt, Germany
- Explicit theory of automorphic forms, applications and computations, May 9-13, 2011, Centre International de Rencontres Math'ematiques in Luminy, France
- 25th Automorphic Forms Workshop, March 23-26, 2011, Corvallis, OR, USA
- Postech Winter School 2011: Serre's Modularity Conjecture, January 14-21, 2011, Pohang, Korea
- DMV-Studierenkonferenz 2009, October 1-2 2009, Bochum, Germany
- Automorphic Forms and L-functions: Computational Aspects, June 22 - July 3, 2009, Montreal, Canada
- Mock theta functions and applications in combinatorics, algebraic geometry, and mathematical physics, May 25-29, 2009, MPIM Bonn, Germany
- The Bellairs Workshop in Number Theory, May 3-10, 2009, Barbados

Research Seminar Darmstadt-Frankfurt: Superstarrheit und Arithmetizität (SS 13), Arakelov-Theorie (WS 12/13), Selbergs 3/16 Theorem (SS 12)

- Singular moduli of higher level and special cycles, Research in the Mathematical Sciences (2015), arXiv
- Vector valued theta functions associated with binary quadratic forms, accepted for publication in Forum Mathematicum (2015), arXiv
- CM values of regularized theta lifts, preprint (2014), submitted
- Lattices with many Borcherds products, with J. H. Bruinier and E. Freitag, Math. of. Comp., to appear, arXiv
- Thesis: CM values of regularized theta lifts (2013), tuprints
- On CM values of Borcherds products and harmonic weak Maass forms of weight one, preprint (2012), arXiv
- Twisted Traces of CM values of weak Maass forms (with C. Alfes), J. Number Theory 133 (2013), no. 6. arXiv, computations
- Twisted Borcherds products on Hilbert modular surfaces and the regularized theta lift, Int. J. Number Theory 6 (2010), no. 7, 1473-1489.