Issues

• Add support for Konieczny objects via Julia/Semigroups.jl

  semigroups/Semigroups#1228 · Filter by author sullivan-james opened on Sep 30, 2026

• Implement "full-domain" partition monoid

  Feature

  semigroups/Semigroups#1218 · Filter by author james-d-mitchell opened on Sep 4, 2026

• TraceOfSemigroupCongruence should really be renamed to TraceOfInverseSemigroupCongruence or TraceOfCongruence

  semigroups/Semigroups#1207 · Filter by author james-d-mitchell opened on Aug 20, 2026
  1

• Issues with SemigroupsTestStandard( ); on Windows

  semigroups/Semigroups#1190 · Filter by author josiahaakre opened on May 18, 2026
  3

• Taking an inverse of an integer matrix throws an error instead of returning fail

  possible-bug
  semigroups/Semigroups#1184 · Filter by author reiniscirpons opened on May 17, 2026
  5

• Issue enumerating semigroups generated by FFE matrices of dimension at least 16

  bug
  semigroups/Semigroups#1178 · Filter by author reiniscirpons opened on May 8, 2026
  6

• Implement rudimentary PowerSemigroup attribute/operation

  feature-request
  Feature

  semigroups/Semigroups#1092 · Filter by author james-d-mitchell opened on Sep 10, 2025
  1

• Build problem on Mac OS

  resolved
  semigroups/Semigroups#1064 · Filter by author egri-nagy opened on Jun 18, 2025
  10

• Implement twisted diagram monoids

  new-feature
  semigroups/Semigroups#1063 · Filter by author flsmith opened on Jun 16, 2025
  2

• Implement OnePseudoInverseOfSemigroupElement for more types of elements

  new-feature
  semigroups/Semigroups#1062 · Filter by author james-d-mitchell opened on Apr 10, 2025

• Implement SchutzenbergerGroup for Green's classes of non-acting semigroup

  new-feature
  semigroups/Semigroups#1049 · Filter by author james-d-mitchell opened on Feb 12, 2025

• Problem with SingularBrauerMonoid when using NambooripadPartialOrder method

  bug
  semigroups/Semigroups#1031 · Filter by author Tianrun-Y opened on Aug 21, 2024
  

• Current InversesOfSemigroupElement method runs on indefintely for an infinite semigroup

  bug
  semigroups/Semigroups#1027 · Filter by author Tianrun-Y opened on Jul 31, 2024
  1

  

• Can't load Semigroups after Smallsemi

  bug
  semigroups/Semigroups#1013 · Filter by author james-d-mitchell opened on May 20, 2024

• Add pickling support for semigroup and monoid presentations

  feature-request
  semigroups/Semigroups#975 · Filter by author james-d-mitchell opened on Jan 10, 2024

• Make free bands be acting semigroups

  feature-requesthelp wanted
  semigroups/Semigroups#973 · Filter by author james-d-mitchell opened on Jan 10, 2024

• Add the functionality of the Konieczny class from libsemigroups to the Semigroups package

  feature-requestlibsemigroups
  semigroups/Semigroups#972 · Filter by author james-d-mitchell opened on Jan 10, 2024

• The documentation of SmallestMultiplicationTable is wrong

  documentation
  semigroups/Semigroups#966 · Filter by author james-d-mitchell opened on Nov 15, 2023

• Implement left and right Rees congruences

  new-feature
  semigroups/Semigroups#940 · Filter by author james-d-mitchell opened on Aug 8, 2023

• Implement LeftSemigroupIdeal and RightSemigroupIdeal

  new-feature
  semigroups/Semigroups#939 · Filter by author james-d-mitchell opened on Aug 8, 2023
  3

• Implement WeakInverse for more types

  enhancementminor
  semigroups/Semigroups#926 · Filter by author james-d-mitchell opened on Jun 19, 2023

• Add DotString method for Munn trees

  minornew-feature
  semigroups/Semigroups#920 · Filter by author james-d-mitchell opened on May 16, 2023

• Implement monoid homomorphisms

  new-feature
  semigroups/Semigroups#919 · Filter by author james-d-mitchell opened on May 16, 2023

• Implement pickling for presentations

  new-feature
  semigroups/Semigroups#918 · Filter by author james-d-mitchell opened on May 16, 2023

• Implement SyntacticCongruence for a semigroup and a subset

  feature-request
  semigroups/Semigroups#883 · Filter by author james-d-mitchell opened on Oct 8, 2022