Ronen Wdowinski
Ronen Wdowinski

Postdoc at TU Graz

    About Me

    I am a postdoctoral researcher at the Institute of Discrete Mathematics at TU Graz, working with Mihyun Kang. I did my PhD in Combinatorics and Optimization at the University of Waterloo, under the supervision of Penny Haxell.

    My research interests lie in extremal, probabilistic, and topological combinatorics. Topics include graph theory, combinatorial optimization, discrete geometry, algebraic topology, and statistical physics.

    Email address: wdowinski [at] math [dot] tugraz [dot] at.

    Here are links to my Google Scholar and arXiv.

    Papers
    1. Hall’s theorem for reconfigurations and higher dimensional topological connectedness.
      Submitted. (arXiv Link)
    2. Sampling from the antiferromagnetic Ising model on bipartite, regular expander graphs (with Anna Geisler, Mihyun Kang, Michail Sarantis).
      Submitted.
    3. Counting independent sets in percolated graphs via the Ising model (with Anna Geisler, Mihyun Kang, Michail Sarantis).
      Submitted. (arXiv Link)
    4. Bounded degree graphs and hypergraphs with no full rainbow matchings.
      European Journal of Combinatorics 133:104316, 2026. (Journal Link, arXiv Link)
    5. Constructing graphs with no independent transversals (with Penny Haxell).
      The Electronic Journal of Combinatorics 31(2):P2–39, 2024. (Journal Link, arXiv Link)
    6. A precise condition for independent transversals in bipartite covers (with Stijn Cambie, Penny Haxell, Ross J Kang).
      SIAM Journal on Discrete Mathematics 38(2):1451–1461, 2024. (Journal Link, arXiv Link)
    7. Degree criteria and stability for independent transversals (with Penny Haxell).
      Journal of Graph Theory 106(2):352–371, 2024. (Journal Link, arXiv Link)
    8. On an f-coloring generalization of linear arboricity of multigraphs.
      Discrete Mathematics 347(2):113777, 2024. (Journal Link, arXiv Link)
    9. Orientation‐based edge‐colorings and linear arboricity of multigraphs.
      Journal of Graph Theory 102(4):633–647, 2023. (Journal Link, arXiv Link)
    10. On zigzag maps and the path category of an inverse semigroup (with Allan Donsig, Jennifer Gensler, Hannah King, David Milan).
      Semigroup Forum 100(3):790–805, 2020. (Journal Link, arXiv Link)
    11. Partitioning the power set of [n] into Ck-free parts (with Eben Blaisdell, András Gyárfás, Robert A Krueger).
      The Electronic Journal of Combinatorics 26(3):P3–38, 2019. (Journal Link, arXiv Link)
    Teaching
    During January to April 2024, I lectured at the University of Waterloo for the course, MATH 136: Linear Algebra 1 for Honours.