Quelle bugfix.tst
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Spracherkennung für: .tst vermutete Sprache: Unknown {[0] [0] [0]} [Methode: Schwerpunktbildung, einfache Gewichte, sechs Dimensionen]
gap> START_TEST("bugfix.tst");
# Use consistent names for the Tits group and for the Ree group containing it.
# See < https://github.com/gap-packages/primgrp/issues/17>
gap> G := PrimitiveGroup( 1600, 20);
2F( 4, 2)'
gap> IsomorphismTypeInfoFiniteSimpleGroup(G);
rec( name := " 2F( 4, 2)' = Ree( 2)' = Tits", parameter := 2, series := " 2F",
shortname := " 2F4( 2)'" )
#
gap> G := PrimitiveGroup( 1755, 1);
2F( 4, 2)'
gap> IsomorphismTypeInfoFiniteSimpleGroup(G);
rec( name := " 2F( 4, 2)' = Ree( 2)' = Tits", parameter := 2, series := " 2F",
shortname := " 2F4( 2)'" )
#
gap> G := PrimitiveGroup( 1755, 2);
2F( 4, 2)
#
gap> G := PrimitiveGroup( 2304, 9);
2F( 4, 2)'
gap> IsomorphismTypeInfoFiniteSimpleGroup(G);
rec( name := " 2F( 4, 2)' = Ree( 2)' = Tits", parameter := 2, series := " 2F",
shortname := " 2F4( 2)'" )
#
gap> G := PrimitiveGroup( 2304, 10);
2F( 4, 2)
#
gap> G := PrimitiveGroup( 625, 672);
5^ 4: 4.(S5 wr 2)
# Fix of the bug reported by Ali Reza Rahimipour on 12 June 2020
gap> G := PrimitiveGroup( 1600, 17);
PSU( 3, 4)
gap> G := PrimitiveGroup( 1600, 18);
PSU( 3, 4): 2
gap> G := PrimitiveGroup( 1600, 19);
PSU( 3, 4): 4
# not really a bug, but: ensure consisting naming for O+( 8, 2) and friends;
# PrimitiveGroup( 960, 7) used to have the name "OPlus( 8, 2)"
gap> degs := [ 119, 120, 135, 136, 765, 960, 1071, 1120, 1575, 1632 ];;
gap> AllPrimitiveGroups(NrMovedPoints, degs, Size, Size(SO(+ 1, 8, 2)));
[ PSO+( 8, 2), PSO+( 8, 2), PSO+( 8, 2), POmega+( 8, 2): 2, POmega+( 8, 2): 2 ]
gap> AllPrimitiveGroups(NrMovedPoints, degs, Size, Size(SO(+ 1, 8, 2))/ 2);
[ O+( 8, 2), O+( 8, 2), O+( 8, 2), POmega+( 8, 2), POmega+( 8, 2) ]
gap> AllPrimitiveGroups(NrMovedPoints, degs, Size, Size(SO(- 1, 8, 2)));
[ PSO-( 8, 2), PSO-( 8, 2), PSO-( 8, 2), PSO-( 8, 2), POmega-( 8, 2): 2 ]
gap> AllPrimitiveGroups(NrMovedPoints, degs, Size, Size(SO(- 1, 8, 2))/ 2);
[ O-( 8, 2), O-( 8, 2), O-( 8, 2), POmega-( 8, 2), POmega-( 8, 2) ]
# Fix an error in the name reported by Andries Brouwer
gap> G := PrimitiveGroup( 81, 103);
3^ 4:( 2^ 3:Sym( 4)):Sym( 3)
#
gap> G := PrimitiveGroup( 100, 14);
Alt( 6)^ 2. 4
#
gap> G := PrimitiveGroup( 121, 38);
11^ 2:( 5 x Q_24)
#
gap> G := PrimitiveGroup( 289, 35);
17^ 2:SL( 2, 3)
#
gap> STOP_TEST("bugfix.tst", 1);
[Dauer der Verarbeitung: 0.12 Sekunden, vorverarbeitet 2026-06-13]
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2026-07-09
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