Bartłomiej Kielak

Contact details

Faculty of Mathematics and Computer Science, Leipzig University

Neues Augusteum, Augustusplatz 10, 04109 Leipzig

E-mail address: bartlomiej.kielak - at - uni-leipzig.de

I am a postdoctoral researcher at the Faculty of Mathematics and Computer Science at Leipzig University, where I am hosted by Daniel Kráľ. I obtained my PhD in Mathematics at Jagiellonian University under the supervision of Andrzej Grzesik and Bartosz Walczak. My main field of interest is extremal combinatorics, with the emphasis on Turán-type problems.

Here, you can find my CV and doctoral thesis.

Publications

Andrzej Grzesik, Justyna Jaworska, Bartłomiej Kielak, Aliaksandra Novik, Tomasz Ślusarczyk: Turán problems for oriented graphs, Ann. Comb. (2024).
Andrzej Grzesik, Daniel Il'kovič, Bartłomiej Kielak, Daniel Král': Quasirandom forcing orientations of cycles, SIAM J. Discrete Math. 37(4) (2023), 2689--2716.
Łukasz Bożyk, Andrzej Grzesik, Bartłomiej Kielak: On the inducibility of oriented graphs on four vertices, Discrete Math. 345(7) (2022), 112874.
Andrzej Grzesik, Bartłomiej Kielak: On the maximum number of odd cycles in graphs without smaller odd cycles, J. Graph Theory 99(2) (2022), 240-246.
James Aaronson, Carla Groenland, Andrzej Grzesik, Tom Johnston, Bartłomiej Kielak: Exact hyperplane covers for subsets of the hypercube, Discrete Math. 334(9) (2021), 112490.

Igor Balla, Marek Filakovský, Bartłomiej Kielak, Daniel Kráľ, Niklas Schlomberg: Curves on the torus with few intersections, submitted.
Andrzej Grzesik, Justyna Jaworska, Bartłomiej Kielak, Piotr Kuc, Tomasz Ślusarczyk: Generalized Turán problem for directed cycles, submitted.
Anurag Bishnoi, Bartłomiej Kielak, Benedek Kovács, Zoltán Lóránt Nagy, Gábor Somlai, Máté Vizer, Zeyu Zheng: The generalized trifference problem, submitted.
Justyna Jaworska, Bartłomiej Kielak, Tomáš Masařík, Jana Masaříková: Constricting the Computational Complexity Gap of the 4-Coloring Problem in (Pt,C3)-free Graphs.

Conference talks and posters

European Conference on Combinatorics, Graph Theory and Applications (EUROCOMB'23), Prague 2023: poster Turán problems for oriented graphs.
9th Polish Combinatorial Conference, Będlewo 2022: contributed talk On Inducibility of Small Graphs and Oriented Graphs.
European Conference on Combinatorics, Graph Theory and Applications (EUROCOMB'19), Bratislava 2019: contributed talk On the maximum number of odd cycles in graphs without smaller odd cycles.
7th Polish Combinatorial Conference, Będlewo 2018: contributed talk On the maximum number of odd cycles in graphs without smaller odd cycles.

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