Ivan Novak

University of Zagreb, Faculty of Science, Department of Mathematics
Email: ivan.novak@math.hr
Office: Room 225
Address: Faculty of Science, Department of Mathematics, Bijenička 30, Zagreb

About me

My name is Ivan Novak. I am a PhD student at the University of Zagreb, Faculty of Science, Department of Mathematics. I am currently in 3rd year of my PhD. My research interest is number theory. In particular, I am interested in elliptic curves over number fields and their Galois representations, their torsion and isogenies, and modular curves. My PhD advisor is Filip Najman.

Publications

[1] Number of K-rational points with given j-invariant on modular curves, Ivan Novak, preprint, arXiv:2512.24817 (2025). PDF
[2] Quadratic points on modular curves \(X_0(N)\) for \(N\leq 100\), Filip Najman, Ivan Novak, arXiv:2508.14480 (to appear in Research in Number Theory). PDF
[3] Torsion of \(\mathbb Q\)-curves over number fields of small odd prime degree, Ivan Novak, preprint, arXiv:2506.00753 (2025). PDF
[4] Degrees of isogenies over prime degree number fields of non-CM elliptic curves with rational j-invariant, Ivan Novak, Journal of Number Theory 278 (2026), 694–714. DOI PDF

Teaching

In 2025/26, I am a teaching assistant at the following courses:

Links