Items where Author is "Williams, Gerald"

Article

Chinyere, Ihechukwu and Edjvet, Martin and Williams, Gerald (2025) All hyperbolic cyclically presented groups with positive length three relators. Journal of Pure and Applied Algebra, 229 (12). p. 108133. DOI https://doi.org/10.1016/j.jpaa.2025.108133

Williams, Gerald (2025) 3-manifold spine cyclic presentations with seldom seen Whitehead graphs. Canadian Mathematical Bulletin. pp. 1-19. DOI https://doi.org/10.4153/s0008439525000396

Noferini, Vanni and Williams, Gerald (2025) Smith forms of matrices in Companion Rings, with group theoretic and topological applications. Linear Algebra and Its Applications, 708. pp. 372-404. DOI https://doi.org/10.1016/j.laa.2024.12.003

Cihan, Mehmet Sefa and Williams, Gerald (2024) Strong Digraph Groups. Canadian Mathematical Bulletin, 67 (4). pp. 991-1000. DOI https://doi.org/10.4153/s0008439524000390

Cihan, Mehmet Sefa and Williams, Gerald (2024) Finite groups defined by presentations in which each defining relator involves exactly two generators. Journal of Pure and Applied Algebra, 4 (4). p. 107499. DOI https://doi.org/10.1016/j.jpaa.2023.107499

Mohamed, Esamaldeen and Williams, Gerald (2023) Counting isomorphism classes of groups of Fibonacci type with a prime power number of generators. Journal of Algebra, 633. pp. 887-905. DOI https://doi.org/10.1016/j.jalgebra.2023.04.032

Chinyere, Ihechukwu and Williams, Gerald (2023) Redundant relators in cyclic presentations of groups. Journal of Group Theory, 26 (6). pp. 1095-1126. DOI https://doi.org/10.1515/jgth-2022-0127

Isherwood, Shaun and Williams, Gerald (2022) On the Tits alternative for cyclically presented groups with length four positive relators. Journal of Group Theory. pp. 837-850. DOI https://doi.org/10.1515/jgth-2021-0131

Noferini, Vanni and Williams, Gerald (2022) Cyclically presented groups as Labelled Oriented Graph groups. Journal of Algebra, 605. pp. 179-198. DOI https://doi.org/10.1016/j.jalgebra.2022.04.018

Chinyere, Ihechukwu and Williams, Gerald (2022) Generalized polygons and star graphs of cyclic presentations of groups. Journal of Combinatorial Theory, Series A, 190. p. 105638. DOI https://doi.org/10.1016/j.jcta.2022.105638

Chinyere, Ihechukwu and Williams, Gerald (2022) Hyperbolicity of T(6) Cyclically Presented Groups. Groups, Geometry, and Dynamics, 16 (1). pp. 341-361. DOI https://doi.org/10.4171/GGD/651

Chinyere, Ihechukwu and Williams, Gerald (2022) Fractional Fibonacci groups with an odd number of generators. Topology and its Applications, 312. p. 108083. DOI https://doi.org/10.1016/j.topol.2022.108083

Mohamed, Esamaldeen and Williams, Gerald (2022) An Investigation Into the Cyclically Presented Groups with Length Three Positive Relators. Experimental Mathematics, 31 (2). pp. 537-551. DOI https://doi.org/10.1080/10586458.2019.1655817

Noferini, Vanni and Williams, Gerald (2021) Matrices in companion rings, Smith forms, and the homology of 3-dimensional Brieskorn manifolds. Journal of Algebra, 587. pp. 1-19. DOI https://doi.org/10.1016/j.jalgebra.2021.07.018

Chinyere, Ihechukwu and Williams, Gerald (2021) Hyperbolic groups of Fibonacci type and T(5) cyclically presented groups. Journal of Algebra, 580. pp. 104-126. DOI https://doi.org/10.1016/j.jalgebra.2021.04.003

Howie, James and Williams, Gerald (2020) Planar Whitehead graphs with cyclic symmetry arising from the study of Dunwoody manifolds. Discrete Mathematics, 343 (12). p. 112096. DOI https://doi.org/10.1016/j.disc.2020.112096

Cuno, Johannes and Williams, Gerald (2020) A class of digraph groups defined by balanced presentations. Journal of Pure and Applied Algebra, 224 (8). p. 106342. DOI https://doi.org/10.1016/j.jpaa.2020.106342

Mohamed, Esamaldeen and Williams, Gerald (2019) Isomorphism theorems for classes of cyclically presented groups. International Journal of Algebra and Computation, 29 (06). pp. 1009-1017. DOI https://doi.org/10.1142/S0218196719500383

Williams, Gerald (2019) Generalized Fibonacci groups H(r,n,s) that are connected labelled oriented graph groups. Journal of Group Theory, 22 (1). pp. 23-39. DOI https://doi.org/10.1515/jgth-2018-0032

Telloni, Agnese Ilaria and Williams, Gerald (2014) Smith forms of circulant polynomial matrices. Linear Algebra and Its Applications, 458. pp. 559-572. DOI https://doi.org/10.1016/j.laa.2014.06.032

Williams, Gerald (2014) Smith forms for adjacency matrices of circulant graphs. Linear Algebra and its Applications, 443. pp. 21-33. DOI https://doi.org/10.1016/j.laa.2013.11.006

Book Section

Williams, Gerald and Bogley, William A and Edjvet, Martin (2019) Aspherical Relative Presentations All Over Again. In: Groups St Andrews 2017 in Birmingham. London Mathematical Society Lecture Note Series . Cambridge University Press, pp. 169-199. ISBN 9781108728744. Official URL: http://doi.org/10.1017/9781108692397.008