  
  
                                    [1X AClib [101X
  
  
          [1X Almost Crystallographic Groups - A Library and Algorithms [101X
  
  
                                      1.4
  
  
                                 12 August 2026
  
  
                                 Karel Dekimpe
  
                                  Bettina Eick
  
  
  
  Karel Dekimpe
      Email:    [7Xmailto:Karel.Dekimpe@kuleuven.be[107X
      Homepage: [7Xhttps://kulak.kuleuven.be/~dekimpe/[107X
      Address:  [33X[0;14YKatholieke Universiteit Leuven[133X
                [33X[0;14YCampus Kortrijk, Universitaire Campus[133X
                [33X[0;14YKortrijk, B 8500[133X
                [33X[0;14YBelgium[133X
  
  
  Bettina Eick
      Email:    [7Xmailto:beick@tu-bs.de[107X
      Homepage: [7Xhttps://www.iaa.tu-bs.de/beick[107X
      Address:  [33X[0;14YInstitut Analysis und Algebra[133X
                [33X[0;14YTU Braunschweig[133X
                [33X[0;14YUniversitätsplatz 2[133X
                [33X[0;14YD-38106 Braunschweig[133X
                [33X[0;14YGermany[133X
  
  
  
  -------------------------------------------------------
  
  
  [1XContents (AClib)[101X
  
  1 [33X[0;0YThe Almost Crystallographic Groups Package[133X
    1.1 [33X[0;0YMore about almost crystallographic groups[133X
  2 [33X[0;0YAlgorithms for almost crystallographic groups[133X
    2.1 [33X[0;0YProperties of almost crystallographic groups[133X
      2.1-1 IsAlmostCrystallographic
      2.1-2 IsAlmostBieberbachGroup
    2.2 [33X[0;0YBetti numbers[133X
      2.2-1 OrientationModule
      2.2-2 BettiNumber
      2.2-3 BettiNumbers
    2.3 [33X[0;0YDetermination of certain extensions[133X
      2.3-1 HasExtensionOfType
  3 [33X[0;0YThe catalog of almost crystallographic groups[133X
    3.1 [33X[0;0YRational matrix groups[133X
      3.1-1 AlmostCrystallographicGroup
    3.2 [33X[0;0YPolycyclically presented groups[133X
      3.2-1 AlmostCrystallographicPcpGroup
      3.2-2 IsomorphismPcpGroup
      3.2-3 HolonomyGroup
    3.3 [33X[0;0YMore about the type and the defining parameters[133X
      3.3-1 AlmostCrystallographicInfo
    3.4 [33X[0;0YThe electronic versus the printed library[133X
  4 [33X[0;0YExample computations with almost crystallographic groups[133X
    4.1 [33X[0;0YExample computations I[133X
    4.2 [33X[0;0YExample computations II[133X
    4.3 [33X[0;0YExample computations III[133X
  
  
  [32X
