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Dr. B. (Bahareh) Afshari

Faculty of Science

Visiting address
  • Science Park 105
  • Room number:F1.09
Postal address
  • Postbus 94242
    1090 GE Amsterdam
Contact details
Social media
  • About me

    I obtained a PhD in Mathematics from the University of Leeds. Since then I have held research and teaching positions at the University of Edinburgh (Laboratory for Foundations of Computer Science), University of Oxford (Department of Computer Science and Keble College), Vienna University of Technology (Institute of Discrete Mathematics and Geometry), and University of Gothenburg (Department of Computer Science and Engineering and Faculty of Philosophy, Linguistics and Theory of Science). I obtained my Docent in Logic in 2019.

    I am Assistant Professor (Universitair Docent) and MacGillavry Fellow at UvA, and Associate Professor (Docent in Logic) at GU. 

    See my interview with the MacGillavry Fellowship programme for a  general persepective of my research.

    You can read more about the research groups I am affiliated to in the following links.

  • Research

    My research lies at the intersection of mathematics and computer science with a focus on interactions between expressibility, complexity, and deductive strength in fixpoint logics. I employ techniques from proof theory, notably proof transformations, cut-elimination and tableaux, to gain insight into the behaviour of fixpoint constructions.

    Other topics that I have worked on previously and/or are currently pursuing include relative computability, reverse mathematics, ordinal analysis, computational content of proofs, automata theory and games.

    Current research projects

    1. Cyclic Proofs for Modal and Higher-order Logic (2021-2025). Funded by the Dutch Research Council (NWO).
    2. Proof theory of fixed point modal logic (2019–2023). Funded by the Faculty of Science of the University of Amsterdam.
    3. Modal mu-calculus: A study in descriptive complexity (2017–2021). Funded by a Starting Grant from the Swedish Research Council.

    PhD students

    Research seminars

    Algebra|Coalgebra Seminar

  • Teaching

    I teach the following courses. If you have any enquiries you are welcome to contact me directly.

  • Publications

    Below you will see my publications since 2019. For earlier articles please visit my GU homepage.

  • Publications


    • Afshari, B., & Leigh, G. (Accepted/In press). Lyndon interpolation for modal mu-calculus. In Lecture Notes in Computer Science, Springer (Lecture Notes in Computer Science). Springer.
    • Afshari, B., Hetzl, S., & Leigh, G. E. (2020). Herbrand's theorem as higher order recursion. Annals of Pure and Applied Logic, 171(6), [102792]. [details]


    • Afshari, B., & Leigh, G. E. (2019). Direct interpolation for modal mu-calculus. In Proceedings of the Tbilisi Symposia on Language, Logic and Computation
    • Afshari, B., Jäger, G., & Leigh, G. E. (2019). An infinitary treatment of full mu-calculus. In R. Iemhoff, M. Moortgat, & R. de Queiroz (Eds.), Logic, Language, Information, and Computation: 26th International Workshop, WoLLIC 2019, Utrecht, The Netherlands, July 2-5, 2019 : proceedings (pp. 17-34). (Lecture Notes in Computer Science; Vol. 11541), (FoLLI Publications on Logic, Language and Information). Berlin: Springer. [details]
    This list of publications is extracted from the UvA-Current Research Information System. Questions? Ask the library or the Pure staff of your faculty / institute. Log in to Pure to edit your publications. Log in to Personal Page Publication Selection tool to manage the visibility of your publications on this list.
  • Ancillary activities
    No known ancillary activities