George Kenison

About Me

I am a senior postdoctoral fellow at KU Leuven in the Department of Computer Science. I was previously a research fellow in Computer Science and Informatics at Liverpool John Moores University. Before that, I was a research associate at both TU Wien and the University of Oxford.

My academic interests lie in computational aspects of Algebraic Dynamical Systems and their applications in Verification and Program Analysis. My research primarily investigates the boundary between decidable and undecidable problems.

forename.surname@kuleuven.be

In May 2026, I will join Maynooth University as an Assistant Professor. Maynooth email addresses use the forename.surname@mu.ie format.

Interests

Theory of Computation
Algebraic Dynamical Systems
Program Analysis
Automated Verification

Education

PhD in Mathematics, 2017

University of Warwick
Masters of Mathematics, 2013

University of Warwick

Publications and Preprints

P. C. Bell, G. Kenison, R. Niskanen, I. Potapov, P. Semukhin (2026). On Word Representations and Embeddings in Complex Matrices.

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G. Kenison, O. Klurman, E. Lefaucheux, F. Luca, P. Moree, E. C. Sertöz, J. Ouaknine, M. A. Whiteland, J. Worrell (2026). On Inequality Decision Problems for Low-Order Holonomic Sequences.

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R. Ait El Manssour, G. Kenison, M. Shirmohammadi, A.Varonka, J. Worrell (2026). Determination Problems for Orbit Closures and Matrix Groups. Proceedings of the ACM on Programming Languages, POPL'26.

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G. Kenison, J. Konieczny, F. Luca, A. Scoones, M. Shirmohammadi, J. Worrell (2025). On the growth of hypergeometric sequences.

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R. Ait El Manssour, G. Kenison, M. Shirmohammadi, A. Varonka (2025). Simple Linear Loops: Algebraic Invariants and Applications. Proceedings of the ACM on Programming Languages, POPL'25.

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G. Kenison (2024). The Threshold Problem for Hypergeometric Sequences with Quadratic Parameters. International Colloquium on Automata, Languages, and Programming, ICALP ‘24.

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D. Amrollahi, E. Bartocci, G. Kenison, L. Kovács, M. Moosbrugger, M. Stankovič (2024). (Un)Solvable Loop Analysis. Formal Methods in Systems Design.

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S. Hitarth, G. Kenison, L. Kovács, A. Varonka (2024). Linear Loop Synthesis for Quadratic Invariants. International Symposium on Theoretical Aspects of Computer Science, STACS ‘24.

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G. Kenison, J. Nieuwveld, J. Ouaknine, J. Worrell (2023). Positivity Problems for Reversible Linear Recurrence Sequences. International Colloquium on Automata, Languages, and Programming, ICALP ‘23.

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G. Kenison, K. Nosan, M. Shirmohammadi, J. Worrell (2023). The Membership Problem for Hypergeometric Sequences with Quadratic Parameters. International Symposium on Symbolic and Algebraic Computation, ISSAC ‘23.

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G. Kenison, L. Kovács, A. Varonka (2023). From Polynomial Invariants to Linear Loops. International Symposium on Symbolic and Algebraic Computation, ISSAC ‘23.

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D. Amrollahi, E. Bartocci, G. Kenison, L. Kovács, M. Moosbrugger, M. Stankovič (2022). Solving Invariant Generation for Unsolvable Loops. International Static Analysis Symposium, SAS ‘22.

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G. Kenison (2022). On the Skolem Problem for Reversible Sequences. Mathematical Foundations in Computer Science, MFCS `22.

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G. Kenison, O. Klurman, E. Lefaucheux, F. Luca, P. Moree, J. Ouaknine, M. A. Whiteland, J. Worrell (2021). On Positivity and Minimality for Second-Order Holonomic Sequences. Mathematical Foundations in Computer Science, MFCS `21.

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G. Kenison, R. Lipton, J. Ouaknine, J. Worrell (2020). On the Skolem Problem and prime powers. International Symposium on Symbolic and Algebraic Computation, ISSAC `20.

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G. Kenison, R. Sharp (2019). Statistics in conjugacy classes in free groups. Geom. Dedicata.

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G. Kenison, R. Sharp (2017). Orbit counting in conjugacy classes for free groups acting on trees. J. Topol. Anal.

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