Department of Mathematics
University College London
London WC1E 6BT
Phone +44 (0) 20 7679
+ 44 (0) 20 7383 5519
Voice +44 (0) 20 7679
+ 44 (0) 20 7383 5519
E-mail: petridis at member.ams.org, i.petridis at ucl.ac.uk
Lecture Notes for LTCC course: L-functions
`Arithmetic Statistics of modular symbols' (with M. S. Risager), submitted. pdf file
`On the value distribution of two L-functions' (with N. Laaksonen)
to appear in Funct. Approx. Comment. Math. pdf file
`Hyperbolic point counting for a conjugacy class' (with D. Chatzakos)
Forum Math., 28 (2016), no. 5, 981–1003. pdf file
`Averaging over Heegner points in the hyperbolic circle problem' (with M. S. Risager), Int. Math. Res. Not. IMRN 2017 rnx026. doi: 10.1093/imrn/rnx026 pdf file <\li>
`Local average in hyperbolic lattice point counting' (with M. S. Risager and an appendix by N. Laaksonen), Math. Z. 285 (2017) 1319–1344. pdf file
`A double Dirichlet series and applications to QUE of weight 1/2 Eisenstein series' (with N. Raulf and M. S. Risager), Algebra and Number Theory Vol. 8 (2014), No. 7, 1539-1595 pdf file
`Quantum Limits of Eisenstein Series and Scattering states' (with N. Raulf and M. Risager), Can. Math. Bull. 56 (2013), 814-826, Erratum to Quantum Limits of Eisenstein Series and Scattering States Canad. Math. Bull. 56 (2013), 827-828.
`Instability of cuspidal eigenvalues for hyperbolic surfaces' (with M. Risager)
RIMS Kokyuroku No. 1767, 2011.10, Automorphic forms, trace formulas and zeta functions, ed. Yasuro Gon, (2011), 146-160. pdf file
`Dissolving cusp forms: Higher order Fermi's Golden Rules' (with M. Risager), Mathematika 59 (2013), 269-301. pdf file
`Hyperbolic lattice-point counting
and modular symbols' (with M. Risager), J. Theor. Nombres Bordeaux 21 (2009), 719-732. pdf file
`Geodesics in hyperbolic space and Number Theory' (expository), Jahrbuch der Max-Planck-Gesellschaft 2006 pdf file in german: pdf file
`Equidistribution of geodesics on homology classes and analogues for free groups' (with M.Risager), Forum Mathematicum 20 (2008), 783-815.pdf file
`Discrete logarithms in free groups' (with M. Risager), Proc. Amer. Math. Soc. 134 (2006), 1002-1012. pdf file
`The remainder in Weyl's law for n-dimensional Heisenberg manifolds' (with M. Khosravi), Proc. Amer. Math. Soc. 133 (2005), 3561-3571.pdf file
`Lattice counting for deformations of convex domains.' (with J. Toth), J. Differential Geom. 72 (2006) 339-352.pdf file
`The distribution of values of the Poincare pairing for hyperbolic Riemann surfaces' (with M. S. Risager), J. Reine Angew. Math. 579 (2005) 159-173. pdf file
`Modular symbols have a normal distribution' (with M. Risager),
Geom. Funct. Anal. 14 (2004), 1013-1043. pdf file.
`The remainder in Weyl's law for Heisenberg manifolds II' (with D. Chung and J. Toth), Bonner Mathematische Schriften, Nr. 360 (2003) pdf file.
`Spectral deformations and Eisenstein series associated with modular symbols',
Internat. Math. Res. Notices 2002, no. 19, 991-1006. pdf file .
`On the number of Fourier coefficients that determine a Hilbert modular form (with S. Baba and K. Chakraborty), Proc. Amer. Math. Soc. 130 (2002), 2497-2502. pdf file
`The remainder in Weyl's law for random two-dimensional flat tori' (with J. Toth), Geom. Funct. Anal. 12 (2002), no. 4, 756--775. pdf file
`The remainder in Weyl's law for Heisenberg manifolds' (with J. Toth),
J. Differential Geom. 60 (2002), no. 3, 455--483. pdf file
`On Kummer's conjecture' (with Ram Murty), J. Number Theory, 90, (2001), 294-303.
`Quantum Unique Ergodicity for SL(2,O)\H^3 and estimates for L-functions'
(with P. Sarnak), J. Evol.
Equ. 1 (2001), 277-290. pdf file
`Perturbation of Scattering Poles for Hyperbolic Surfaces and Central Values
of L-series', Duke Math. J., 103 (2000), no. 1, 101-130. pdf file
'Variation of Scattering Poles for Conformal Metrics', Spectral Problems
in Geometry and Arithmetic (Iowa City, IA, 1997), 149-158, Contemp. Math., 237, Amer. Math. Soc., Providence, RI, 1999. pdf file
`Fourier coefficients of cusp forms', Number Theory (Ottawa, ON, 1996),
297-307, CRM Proc. Lecture Notes, 19, Amer. Math. Soc., Providence, RI, 1999. pdf file
`On squares of eigenfunctions for the hyperbolic plane and a new bound
on certain L-series', Internat. Math. Res. Notices, 1995, no. 3, 111-127. pdf file
`On inner products of eigenfunctions for the hyperbolic plane',
Max-Planck-Institut preprint / 95-1, 1995.
`Spectral data for finite volume hyperbolic surfaces at the bottom of
the continuous spectrum', J. Funct. Anal., 124 (1994), no. 1, 61-94.
`On the singular set, the resolvent and Fermi's Golden Rule for
finite volume hyperbolic surfaces', Manuscripta Math., 82 (1994), no. 3-4,
331-347. pdf file
`On differences of eigenvalues for flat tori and hyperbolic surfaces',
Geometry of the Spectrum (Seattle, WA, 1993), 241-256, Contemp. Math.,
173, Amer. Math. Soc., Providence, RI, 1994. pdf file
Automorphic forms and their Spectral Theory, Analytic Number Theory,
Spectral and Scattering Theory of Manifolds.
Reader, University College London (2009-)
Lecturer, University College London (2007-2009)
Associate Professor, City University of New York, Lehman College (2006-2007)
Assistant Professor, City University of New York, Lehman College (2002-2005)
Research Associate, McGill University (2000-2002)
Adjunct Assistant Professor, Queen's University (1999-2000)
Postdoctoral Fellow, McGill University (1996-1998)
Lecturer, University of California, Santa Barbara (1994-1996)
Member, Mathematical Sciences Research Institute (October 1994)
Member, Max-Planck-Institut fur Mathematik (1993-1994)
Visiting Assistant Professor, Johns Hopkins University (1992-1993)
Stanford University, Stanford, California (Sept. 1987-Sept. 1992).
Ph.D. in mathematics, 1993.
Thesis advisor: Peter Sarnak.
Thesis title: Scattering Theory for Automorphic
Functions and its
relation to L-functions.
M.A. in mathematics, 1989.
National University of Athens, Greece, B.Sc. in mathematics (1983-1987).
ETH, Zurich, Number Theory Seminar, March 2017.
Max-Planck-Institut fur Mathematik, Number Theory Lunch, February 2017.
Humboldt Universitat, Forschungsseminar Arithmetische Geometrie, January 2017.
Seminaire d’Algebre et de Theorie des Nombres, EPFL Lausanne, April 2016.
Oxford Number Theory Seminar, February 2016.
Arithmetique en Plat Pays, Lille, February 2016.
First Nisyros Conference on automorphic representations and related topics, July 2015.
Building Bridges: 2nd EU/US Summer School and Workshop on Automorphic Forms and Related Topics, July 2014.
A Scientific Celebration in honour of Ram Murty’s 60th birthday CRM, Montreal, October 2013
Workshop on Geometry of Eigenvalues and Eigenfunctions, CRM, Montreal, June 2012.
Analytic theory of automorphic forms, Oberwolfach, Sept. 2011
Automorphic forms, trace formulas and zeta functions RIMS Conference, January 2011.
Durham modular form days, September 2010.
Global Analysis and Automorphic Forms, Hebrew University of Jerusalem, March 2010
Heilbronn Seminar, U. of Bristol, March 2010
Conference on Modular Forms and Related Topics, American University of Beirut, July 2009
Prospects in Mathematics, A Symposium for Potential Research Students in Mathematics, Durham University, January 2009
Summer school on Spectral Theory of Automorphic Forms, Pohang, Korea, Lecture Series (6 lectures), August 2008,
Workshop on spectrum and
dynamics, CRM, Montreal, April, 2008.
Number Theory Seminar, Cambridge, November, 2007.
Asymptotics in Geometry, Tohoku University, Sendai, July 2006 (4 lectures).
L-functions and related topics, CRM, Montreal, February 2006
Meeting of the Humboldt Foundation, Mathematics, Theoretical Physics and Astrophysics section, Bonn, April 2005.
Oberseminar Max-Planck-Institut fuer Mathematik, Bonn, April 2005.
Number Theory Seminar, Max-Planck-Institut fuer Mathematik, Bonn, January 2005.
Oberseminar Globale Analysis, Universitaet Bonn, January 2005.
Analysis seminar, Cambridge University, November 2004.
Number Theory Seminar, Oxford University, November 2004.
Workshop on Random Matrix theory and Arithmetic Aspects of Quantum Chaos, Isaac Newton Institute for Mathematical Sciences, U. of Cambridge, June 2004.
Workshop on Semi-classical theory of eigenfunctions and PDEs, Fields Institute, Toronto, June 2004.
Number Theory Seminar, ETH, Zuerich, January 2004.
Number Theory Seminar, Johns Hopkins University, Baltimore, November 2003.
Workshop on automorphic L-functions, Fields Institute, May 2003.
Joint Princeton U./IAS/Rutgers U. Number Theory Seminar, February 2003.
Number Theory Seminar, Max-Planck-Institut fuer Mathematik, Bonn, May 2001.
Number Theory Seminar, New York University, December 2001.
Western Section meeting of AMS, Special Session on Automorphic Forms, Santa
Barbara, March 2000.
Differential Equations and their Applications to Geometry and Physics,
Castelvecchio Pascoli, Italy, June 2000.
54e Colloque des Sciences Mathematiques du Quebec, Montreal, November 2000.
Joint Mathematics Meetings AMS-MAA, Special Session on Recent Developments on the Laplace Operator and its Geometric Applications, Baltimore, January 1998.
Workshop on Analytic Number Theory, Centre de Recherches Mathematiques,
Montreal, Canada, October 1998.
Geometric Analysis in Singular and Noncompact Manifolds, San Feliu de Guixols, Spain, June 1997.
Tenth annual workshop on automorphic forms and related topics, Stanford U.,
Eastern Section Meeting of AMS, Rider U., Lawrenceville, New Jersey, October 1996.
Nevanlinna Colloquium 1993, University of Michigan, Ann Arbor, June 1993.
Summer Conference on Spectral Geometry, organized by AMS, U. of Washington, Seattle, July 1993.
Special session organizer (together with John Toth), AMS meeting in Montreal, September 1997.
Organizer (together with D. Jakobson and J. Toth) of the Workshop
on Spectral Statistics and High-Energy Eigenstates at CRM, Montreal, August 2001.
Organizer (together with D. Jakobson) of a special session on Spectral geometry and analytic aspects of automorphic forms, AMS meeting in Montreal, May 2002.
Organizer (together with D. Jakobson) of the Workshop on Spectral Theory and Automorphic Forms, CRM, Montreal, 2004.
Organizer (together with C. Sormani and J. Dodziuk) of the 2006 CUNY Geometric analysis workshop (The Laplace and Length Spectra), New York, February 2005
Organizer (together with L. Parnovski) of the LMS-EPSRC Short Course in Spectral theory and its applications, UCL, June 2011.
Co-organizer of the London-Paris Number Theory Seminar (2012-) webpage of the seminar
LINKS TO TEACHING MATERIAL
Tutorials: None this term.
Current teaching: MATH2101 Complex Analysis, MATH3703 Prime Numbers and their distribution
Niko Laaksonen: Quantum Limits, counting and Landau-type formulae in hyperbolic space (2011-2016)
Dimitris Chatzakos (2012-2016)
Francois Crucifix: Some applications of the spectral theory of automorphic forms, 2009-2011.
Henry McTighe, Gauss-Kuzmin statistics for regulators of real quadratic fields, 2009.
Ben Vaidya: AKS algorithm and Sieve theory, 2011.
Niko Laaksonen, Discrete Mean Values of Dirichlet L-functions, 2011. Finalist for Science, Engineering and Technology awards in Mathematics for Europe
Andrei Simionescu, Van der Corput's method on exponential sums and lattice-point counting, 2012
Alexandre Peyrot, Small gaps between primes, 2012
George Leadbetter, The Gauss class number one problem, 2013
Christoph Haeusser, The ternary Goldbach conjecture, 2014
Andreea Mocanu, Bounded gaps between primes, 2015
Tom Steeples, The hyperbolic lattice point problem, 2016