Prof Nik Ruskuc

Prof Nik Ruskuc

Director of Research

Professor

Phone
+44 (0)1334 46 3787
Email
nik.ruskuc@st-andrews.ac.uk
Office
303 MI
Location
Mathematical Institute

 

Research areas

Combinatorial semigroup theory: generating sets for semigroups and defining semigroups by presentations (generators and defining relations); presentations for substructures and algebraic constructions;

Subsemigroups: index and rank; 

Group and semigroup presentations;

Transformation semigroups: properties of finite and infinite semigroups of mappings from a set into itself;

 Machine and languages (theoretical computer science) in algebra: automatic structures, decidability;

Combinatorics of permutations, words, etc: pattern classes, decidability questions in combinatorics; 

Computational algebra: algorithms and packages for computing with algebraic structures. 

PhD supervision

  • Callum Barber
  • Jung Won Cho
  • Struan McCartney
  • Theodor Thorbjornsen
  • Zhongyi Zhou
  • Yayi Zhu

Selected publications

  • Open access
    East, J., Gray, R. D., Muhammed, P. A. A. & Ruškuc, N., 1 Mar 2026, In: Journal of Algebra. 689, p. 819-861 43 p.

    Research output: Contribution to journal › Article › peer-review

  • Open access
    Brookes, M., Gould, V. & Ruskuc, N., Jan 2025, In: Mathematika. 71, 1, 14 p., e70005.

    Research output: Contribution to journal › Article › peer-review

  • Open access
    Dolinka, I., East, J. & Ruskuc, N., 15 Jan 2025, In: Journal of Algebra. 662, p. 431-464

    Research output: Contribution to journal › Article › peer-review

  • Open access
    Cho, J. W., Gould, V., Ruskuc, N. & Yang, D., 15 Jan 2025, In: Journal of Algebra. 662, p. 514-527

    Research output: Contribution to journal › Article › peer-review

  • Bevan, D., Brignall, R. & Ruskuc, N., 10 Dec 2025, (Accepted/In press) In: Combinatorial Theory.

    Research output: Contribution to journal › Article › peer-review

  • Open access
    Clayton, A., Reilly, C. & Ruskuc, N., 18 Feb 2025, (E-pub ahead of print) In: Journal of Algebra and Its Applications. Online Ready

    Research output: Contribution to journal › Article › peer-review

  • Open access
    East, J., Gray, R. D., Azeef Muhammed, P. A. & Ruškuc, N., 1 Jul 2025, In: Advances in Mathematics. 473, 61 p., 110288.

    Research output: Contribution to journal › Article › peer-review

  • Open access
    Barber, C. & Ruškuc, N., 7 Jul 2025, (E-pub ahead of print) In: Bulletin of the Australian Mathematical Society. First View, 12 p.

    Research output: Contribution to journal › Article › peer-review

  • Open access
    Clayton, A. M. W., Reilly, C. & Ruskuc, N., 4 Oct 2024, (E-pub ahead of print) In: Bulletin of the Australian Mathematical Society. First View, 10 p.

    Research output: Contribution to journal › Article › peer-review

  • Open access
    Ironmonger, V. L. & Ruskuc, N., 14 Feb 2024, (E-pub ahead of print) In: Order. 26 p.

    Research output: Contribution to journal › Article › peer-review