Homepage of Ondra Ježil

Hi, my name is Ondra and I am a doctoral student at the Department of Algebra of the Faculty of Mathematics and Physics, Charles University, Prague under the supervision of Jan Krajíček. I am interested in Bounded Arithmetic and Computational Complexity Theory.

email: ondrej.jezil[at]email[dot]cz

Research papers

Parallelism and Adaptivity in Student-Teacher Witnessing (with Dimitrios Tsintsilidas) pdf 2026 pre-print, Submitted
Prime Factorization in Models of PV_1 pdf 2025 pre-print, Submitted
Feasibility of Primality in Bounded Arithmetic (with Raheleh Jalali) pdf 2025 pre-print, Accepted to be published in Forum of Mathematics, Sigma
Limits of structures and Total NP Search Problems link Z. Math. Log. Grundlagen Math., to appear (2026), pp. 135–156. DOI: 10.60866/CAM.257.

Teaching (Summer 2024/2025)

Student logic seminar

A seminar about basic propositional proof complexity. Please refer to the seminar's website.

Teaching Archive