Cohomology over finite fields. Lefschetz trace formula and the Weil conjectures, Junior Algebraic Geometry Seminar 2019, pdf
Relative Spec and Proj Construction, Foundations of Algebraic Geometry 2020, pdf
Quasimorfizmy, Baby Horizons in Mathematics, Będlewo 2019, video
Some of them were written when I was undergraduate student. Because of that the older ones might be incomplete.
Introduction to specrtral graph theory, Scientific Club of Theoretical Mathematicians of Wrocław University 2018, pdf