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GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
Project: cocalc-sagemath-dev-slelievre
Views: 418346###################################### # NumberSmallQuasiCatOneGroups # SmallQuasiCatOneGroup # IdQuasiCatOneGroup # NumberSmallQuasiCrossedModules # SmallQuasiCrossedModule # IdQuasiCrossedModule ####################################### ############################################################################# #0 #F NumberSmallQuasiCatOneGroups ## InstallGlobalFunction(NumberSmallQuasiCatOneGroups, function(n) if (n > QUASICATONEGROUP_DATA_SIZE) or (n in QUASICATONEGROUP_DATA_NOT) then Print("This function only apply for order < ",QUASICATONEGROUP_DATA_SIZE+1); Print(" and not in ",QUASICATONEGROUP_DATA_NOT,"\n"); return fail; fi; return Length(SMALLQUASICATONEGROUP_DATA[n]); end); ## ############################################################################# ############################################################################# #0 #F SmallQuasiCatOneGroup ## InstallGlobalFunction(SmallQuasiCatOneGroup, function(n,k) local m,x; if (n > QUASICATONEGROUP_DATA_SIZE) or (n in QUASICATONEGROUP_DATA_NOT) then Print("This function only apply for order < ",QUASICATONEGROUP_DATA_SIZE+1); Print(" and not in ",QUASICATONEGROUP_DATA_NOT,"\n"); return fail; fi; m:=Length(SMALLQUASICATONEGROUP_DATA[n]); if k> m then Print("This function only apply for order < ",QUASICATONEGROUP_DATA_SIZE+1); Print(" and not in ",QUASICATONEGROUP_DATA_NOT,"\n"); return fail; fi; x:=SMALLQUASICATONEGROUP_DATA[n][k]; return SmallCatOneGroup(n,x[1],x[2]); end); ## ############################################################################# ############################################################################# #0 #F IdQuasiCatOneGroup ## InstallGlobalFunction(IdQuasiCatOneGroup, function(C) local D,x; D:=QuasiIsomorph(C); x:=IdCatOneGroup(D); if (x[1] > QUASICATONEGROUP_DATA_SIZE) or (x[1] in QUASICATONEGROUP_DATA_NOT) then Print("This function only apply for order < ",QUASICATONEGROUP_DATA_SIZE+1); Print(" and not in ",QUASICATONEGROUP_DATA_NOT,"\n"); return fail; fi; return IDQUASICATONEGROUP_DATA[x[1]][x[2]][x[3]]; end); ## ############################################################################# ############################################################################# #0 #F NumberSmallQuasiCrossedModules ## InstallGlobalFunction(NumberSmallQuasiCrossedModules, function(n) if (n > QUASICATONEGROUP_DATA_SIZE) or (n in QUASICATONEGROUP_DATA_NOT) then Print("This function only apply for order < ",QUASICATONEGROUP_DATA_SIZE+1); Print(" and not in ",QUASICATONEGROUP_DATA_NOT,"\n"); return fail; fi; return Length(SMALLQUASICATONEGROUP_DATA[n]); end); ## ############################################################################# ############################################################################# #0 #F SmallQuasiCrossedModule ## InstallGlobalFunction(SmallQuasiCrossedModule, function(n,k) local m,x; if (n > QUASICATONEGROUP_DATA_SIZE) or (n in QUASICATONEGROUP_DATA_NOT) then Print("This function only apply for order < ",QUASICATONEGROUP_DATA_SIZE+1); Print(" and not in ",QUASICATONEGROUP_DATA_NOT,"\n"); return fail; fi; m:=Length(SMALLQUASICATONEGROUP_DATA[n]); if k> m then Print("There are only ",m," quasi-isomorphism classes of order ",n,"\n"); return fail; fi; x:=SMALLQUASICATONEGROUP_DATA[n][k]; return CrossedModuleByCatOneGroup(SmallCatOneGroup(n,x[1],x[2])); end); ## ############################################################################# ############################################################################# #0 #F IdQuasiCrossedModule ## InstallGlobalFunction(IdQuasiCrossedModule, function(X) local C,x; C:=QuasiIsomorph(CatOneGroupByCrossedModule(X)); x:=IdCatOneGroup(C); if (x[1] > QUASICATONEGROUP_DATA_SIZE) or (x[1] in QUASICATONEGROUP_DATA_NOT) then Print("This function only apply for order < ",QUASICATONEGROUP_DATA_SIZE+1); Print(" and not in ",QUASICATONEGROUP_DATA_NOT,"\n"); return fail; fi; return IDQUASICATONEGROUP_DATA[x[1]][x[2]][x[3]]; end); ## #############################################################################