Alexandru CiolanMathematical Institute
University of Cologne
Office: Gyrhofstr. 8b 0.5
Telephone: +49 (0)221 470 1886
Office hours: by appointment
E-mail: aciolan AT math.uni-koeln.de
Since August 2017, I am a PhD student of Prof. Kathrin Bringmann at the University of Cologne.
My main research interests are in number theory, particularly in modular forms and partitions. Further interests lie in more elementary topics like cyclotomic polynomials, numerical semigroups and discriminators of integer sequences.
Previously I obtained my M.Sc. degree from the University of Bonn and my B.Sc. degree from Jacobs University Bremen.
Summer 2020: Elliptic Functions, Teaching Assistant
Winter 2019/20: Algebraic Number Theory II, Teaching Assistant
Winter 2018/19: Algebra, Teaching Assistant
Summer 2018: Seminar Elliptische Funktionen
Asymptotics and inequalities for partitions into squares, Int. J. Number Theory 16 (2020), No. 1, 121-143 (2020)
Ranks of overpartitions: Asymptotics and inequalities, J. Math. Anal. Appl. 480 (2019), No. 2, Art. ID 123444, 28 pp.
Browkin's discriminator conjecture, Colloq. Math. 156 (2019), No. 1, 25-56
with Pieter Moree
Counting terms $U_n$ of third order linear recurrences $U_n=u^2+nv^2$, J. Ramanujan Math. Soc. 32 (2017), No. 2, 165-183
with Florian Luca and Pieter Moree
Cyclotomic coefficients: gaps and jumps, J. Number Theory 163 (2016), 211-237
with Oana-Maria Camburu, Florian Luca, Pieter Moree and Igor E. Shparlinski
Cyclotomic numerical semigroups, SIAM J. Discrete Math. 30 (2016), No. 2, 650-668
with Pedro A. García-Sánchez and Pieter Moree
Convergence properties of the classical and generalized Rogers-Ramanujan continued fraction, Res. Number Theory 1 (2015), Art. 15, 18 pp.
with Robert A. Neiss
Olimpiadele de matematică cls. IX-XII, 2008 (in Romanian, Olympiads textbook), GIL Publishing House, Zalău, 2008
with Dragoş Dumitrescu et al
New results on asymptotics and inequalities for partition functions, OPSFA, 07/2019, Hagenberg, Austria
Asymptotics and inequalities for partitions into squares, ABKLS, 11/2018, Utrecht; PLeaSANT Seminar and ELAZ, 09/2018, Bonn, Germany
Cyclotomic numerical semigroups, SFB Retreat, 09/2017, Maria in der Aue, Germany
Gaps and jumps in cyclotomic coefficients, ELAZ, 09/2016, Strobl am Wolfgangsee, Austria
Cyclotomic numerical semigroups I, IMNSA, July 2016, Levico Terme, Italy
Convergence properties of the classical and generalized Rogers-Ramanujan continued fraction, Discoverers avant le PhD, 09/2015, Bonn, Germany
Cyclotomic numerical semigroups, IMNS, 09/2014, Cortona, Italy