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Ekin Özman

CV

I am a faculty member at Groningen University.

Office: Groningen University, Bernoulli Institute, Bernoulliborg 356,  Groningen, Netherlands

e-mail: e.ozman[at] rug [dot] nl

Research Interests: Arithmetic Geometry, Algebraic Number Theory, Rational Points on Curves, Brauer- Manin obstruction, Modular Curves, Q-Curves, Prym Varieties, Invariants of Curves over Algebraically Closed Fields of Characteristic p and Galois Towers of Curves.

Previous Employment: Before coming to Groningen University, I was a faculty memeber at Bogazici University, Istanbul, a post-doc at University of Texas-Austin and an EPDI Laureate.

Publications

  • Iterated Monodromy Group of a PCF Quadratic Non-polynomial Map, with Ö. Ejder and Y. Kara, submitted.

  • Computing Quadratic Points on Modular Curves X_0(N), with N. Adžaga, T. Keller, P. Michaud-Jacobs, F. Najman, and B. Vukorepa, to appear in Mathematics of Computation.

  • On Ternary Diophantine Equations of Signature (p,p,3) over Number Fields, with Isik and Kara, Canadian Journal of Mathematics, 75(4), 1293-1313, 2022.

  • The boundary of the p-rank 0 stratum of the moduli space of cyclic covers of the projective line, with Pries and Weir, Nagoya Math. J. 248, 865–887, 2022.

  • The Hasse Norm Principle in Global Function Fields, with A. Mânzăţeanu, R. Newton, N. Sutherland, R.G. Uysal, Research Directions in Number Theory, AWM Series, Springer,2021

  • S -Unit Equations and the Asymptotic Fermat Conjecture over Number Fields, with S. Siksek, Proceedings of the Journees Arithmetiques XXXI, 2021

  • On Ternary Diophantine Equations of Signature (p, p, 2) over Number Fields, with E. Isik and Y. Kara, Turkish Journal of Mathematics, 2020

  • A bound on the primes of bad reduction for CM curves of genus 3, with Kilicer, Lauter, Garcia,Newton and Streng, Proceedings of AMS, 2020

  • Asymptotic Generalized Fermat's Last Theorem over Number Fields, with Kara, International Journal of Number Theory, 2020

  • Rational Points On Twisted Modular Curves, in Automorphic Forms and Related Topics edited by Anni et al, Contemporary Mathematics, AMS, 2019

  • Quadratic Points on Modular Curves, with S. Siksek in Mathematics of Computation, 2019

  • On the existence of ordinary and almost ordinary Prym varieties, with R. Pries, in Asian Journal of Mathematics, 2019

  • Non-ordinary curves with a Prym variety of low p -rank, with Celik,Elias,Gunes,Newton, Pries and Thomas in Research Directions in Number Theory, AWM Series Vol. 11, 2018

  • RLWE Cryptography for the Number Theorist, with Elias,Lauter and Stange, Directions in Number Theory, AWM Series, Vol. 3, 2016

  • The distribution of Fq-Points on cyclic l-Covers of genus g, with Bucur,David,Feigon,Kaplan, Lalin and Wood in IMRN, 2016

  • Provably weak instances of Ring-LWE , with Elias,Lauter and Stange, Advances in Cryptology- CRYPTO2015, 2015

  • Bad reduction of genus-3 curves with complex multiplication, with Bouw,Cooley,Lauter, Garcia,Manes,Newton, in Research Directions in Number Theory, AWM Series, Vol. 2, 2015

  • Local-global trace questions, with Ciperiani, Proc. American Mathematical Society, 2015

  • Unramifed Brauer classes on cyclic covers of the projective plane, with Ingalls,Obus and Viray with an appendix by Thomas, Proc. of Brauer groups and obstruction problems, Birkhauser, 2016

  • On Polyquadratic Twists of X0(N), Journal of Number Theory, 2013

  • Newton and Hodge polygons for a variant of the Kloosterman family, with Bellovin, Garthwaite, Pries, Williams and Zhu. AMS/CRM Contemp. Research Directions in Number Theory, 2013

  • Points on Quadratic Twists of Modular Curves, Acta Arithmetica, 2012

  • Semi-direct product Galois covers of curves in characteristic p, with Gruendken, Hall-Seelig, Im, Pries and Stevenson, Fields Inst. Commun., 60, Amer. Math. Soc., 2011.

Books Edited

  • Women in Numbers Europe 2, Research Directions in Number Theory, AWM Series, Volume 11, Springer, 2018 with Bouw, Johnson-Leung and Newton

Popular Mathematics

  • Keşiflere Açılan Kapı: Hatalar, Matematik Dünyası 2014-I (A. Bassa, E. Özman)

  • Düzgün Asallar, Matematik Dünyası 2021-I

  • A4 kağıt, Pentagon ve Arşimet'in Sığırları, Matematik Dünyası 2014-II (A. Bassa, E. Özman)

  • Sır Vermeden Kanıtlamak, Matematik Dünyası (A. Bassa, E. Özman)

  • Sayıların Geometrisi, Matematik Dünyası 2014-II (E. Özman)

  • Matematiksel Origami, Bilim ve Teknik 2006 Eylül (E. Özman)

Students

  • Kubra Kaytanci(MSc), 2017

  • Ilkiz Bildik, (MSc), 2017

  • Eda Kirimli, (MSc), 2018

  • Erman Isik, (MSc), 2019

  • Tugce Koc (MSc), 2019

  • Harun Kir (MSc), 2019

  • Pinar Degirmenci (Msc), 2022 (co-advised with Beyarslan)

  • Omer Avci (Msc), 2024

  • Begum Gulsah Cakti (PhD)

Postdoctoral Researchers

  • Yasemin Kara, 2018-2020, PhD Cornell University

  • Özlem Ejder, 2020-2022, PhD, Southern California University


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