Toposes for semigroups: an invitation Jonathon FunkPieter Hofstra SURVEY 01 September 2021 Pages: 715 - 776
Spectrum and convergence of eventually positive operator semigroups Sahiba AroraJochen Glück Research Article Open access 26 July 2021 Pages: 791 - 811
Cyclotomic numerical semigroup polynomials with at most two irreducible factors Alessio BorzìAndrés Herrera-PoyatosPieter Moree RESEARCH ARTICLE Open access 07 June 2021 Pages: 812 - 828
Proportionally modular numerical semigroups generated by arithmetic progressions Edgar Federico ElizecheAmitabha Tripathi RESEARCH ARTICLE 17 August 2021 Pages: 829 - 847
Trace- and pseudo-products: restriction-like semigroups with a band of projections D. G. FitzGeraldM. K. Kinyon Research Article 14 August 2021 Pages: 848 - 866
On the Ellis semigroup of a discrete dynamical system ([0, 1], f) S. García-FerreiraI. Vidal-Escobar Research Article 01 September 2021 Pages: 867 - 878
Abundant semigroup algebras which are Azumaya Junying GuoXiaojiang Guo RESEARCH ARTICLE 24 July 2021 Pages: 879 - 887
Algebraic products of tensor products Neil HindmanDona Strauss Research Article 19 August 2021 Pages: 888 - 898
Coefficient rings of numerical semigroup algebras I-Chiau HuangRaheleh Jafari Research Article 25 August 2021 Pages: 899 - 915
Hypercyclic sequences of weighted translations on hypergroups Vishvesh KumarSeyyed Mohammad Tabatabaie RESEARCH ARTICLE 26 August 2021 Pages: 916 - 934
Infinite sequences of almost symmetric non-Weierstrass numerical semigroups Jiryo Komeda Research Article Open access 11 October 2021 Pages: 935 - 952
Endotypes of partial equivalence relations Yurii ZhuchokOlena Toichkina RESEARCH ARTICLE 08 October 2021 Pages: 966 - 975
The solution of an open problem on semigroup inclusion classes Maria Leonor AraújoMaria Teresa AraújoMichael Kinyon SHORT NOTE 20 August 2021 Pages: 976 - 981
RETRACTED ARTICLE: Function spaces and compact semigroups associated with oids A. M. AminpourMehrdad Seilani RESEARCH ARTICLE Open access 19 November 2015 Pages: 982 - 982