Papers
 Central values of Rankin Lseries over real quadratic fields
 Compositio Math. 142 (2006), 811866, doi:10.1112/S0010437X06002259
 Whittaker newforms for archimedean representations of GL(2)
 J. of Number Theory 128/6 (2008), 16371645,
doi:10.1016/j.jnt.2007.06.005
 Rational decomposition of modular forms
 Ramanujan J. 26/3 (2011), 419435, doi:10.1007/s1113901193016
 Modular forms and period polynomials
 (with V. Pasol)
 Proc. Lond. Math. Soc. 107/4 (2013), 713743,
doi:10.1112/plms/pdt003
 Pair correlation of angles between reciprocal geodesics on the modular surface
 (with F.P. Boca, V. Pasol, A. Zaharescu)
 Algebra and Number Theory, 84 (2014), 9991035,
doi: 10.2140/ant.2014.8.999
 Pair correlation of hyperbolic lattice angles
 (with F.P. Boca, A. Zaharescu)
 Int. J. Number Theory 10/8 (2014), 19551989,
doi:10.1142/S1793042114500651
 On the Petersson scalar product of arbitrary modular forms
 (with V. Pasol)
 Proc. Amer. Math. Soc. 142 (2014), 753760,
doi:10.1090/S000299392013118150
 An algebraic property of Hecke operators and two indefinite theta series
 (with V. Pasol)
 Forum Math. 27/2 (2015), 915928,
doi:10.1515/forum20120114
 A combinatorial refinement of the KroneckerHurwitz class
number relation
 (with D. Zagier)
 Proc. Amer. Math. Soc. 145/3 (2017), 10031008,
doi:10.1090/proc/13281
 On the trace formula for Hecke operators on congruence subgroups
 Proc. Amer. Math. Soc. 146/7 (2018), 27492764, doi:10.1090/proc/13896
 On the trace formula for Hecke operators on congruence subgroups, II
 Research in the Math. Sciences (2018) 5:3,
doi:10.1007/s4068701801255
 A generalization of Ramanujan's congruence to modular forms of prime level
 (with R. Gaba)
 J. of Number Theory 193 (2018), 4873,
doi:10.1016/j.jnt.2018.05.007
 An elementary proof of the EichlerSelberg trace formula
 (with D. Zagier)
 J. Reine Angew. Math., to appear,
doi:10.1515/crelle20180035
Conferences organized
Sixth Bucharest Number Theory Day, July 24, 2018
Workshop on Lfunctions and Galois Representations, June 19, 2018
Automorphic forms and Lfunctions, section of the Joint International Meeting of the German and Romanian Mathematical Societies,
Constanta, September 1619, 2017
Fifth Bucharest Number Theory Day, July 1011, 2017
Workshop on modular forms and Galois representations, August 2223, 2016
Fourth Bucharest Number Theory Day, July 19, 2016
Third Bucharest Number Theory Day, August 3rd, 2015
Second Bucharest Number Theory Day, July 22nd, 2014
Bucharest Number Theory Day, July 16th, 2013
Workshop on
"Automorphic forms and Lfunctions", June 68, 2012
