SSL manual.tst
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rahmenlose Ansicht.tst DruckansichtUnknown {[0] [0] [0]} [Methode: Schwerpunktbildung, einfache Gewichte, sechs Dimensionen] gap> START_TEST( "Cryst: manual.tst" );
gap> SetAssertionLevel(1);
gap> S := SpaceGroupIT(3,222);
SpaceGroupOnRightIT(3,222,'2')
gap> L := MaximalSubgroupClassReps( S, rec( primes := [3,5] ) );;
gap> List( L, IndexInParent );
[ 3, 27, 125 ]
gap> L := MaximalSubgroupClassReps( S,
> rec( classequal := true, primes := [3,5] ) );;
gap> List( L, IndexInParent );
[ 27, 125 ]
gap> L := MaximalSubgroupClassReps( S,
> rec( latticeequal := true, primes := [3,5] ) );;
gap> List( L, IndexInParent );
[ 3 ]
gap> L := MaximalSubgroupClassReps( S, rec( latticeequal := true ) );;
gap> Length(L);
5
gap> List( L, IndexInParent );
[ 2, 2, 2, 3, 4 ]
gap> P := Group([ [ [ -1, 0 ], [ 0, -1 ] ], [ [ -1, 0 ], [ 0, 1 ] ] ]);
Group([ [ [ -1, 0 ], [ 0, -1 ] ], [ [ -1, 0 ], [ 0, 1 ] ] ])
gap> norm := [ [ [ -1, 0 ], [ 0, -1 ] ], [ [ -1, 0 ], [ 0, 1 ] ], [ [ -1, 0 ],
> [ 0, -1 ] ], [ [ 1, 0 ], [ 0, -1 ] ], [ [ 0, 1 ], [ 1, 0 ] ] ];
[ [ [ -1, 0 ], [ 0, -1 ] ], [ [ -1, 0 ], [ 0, 1 ] ], [ [ -1, 0 ], [ 0, -1 ] ],
[ [ 1, 0 ], [ 0, -1 ] ], [ [ 0, 1 ], [ 1, 0 ] ] ]
gap> if IsPackageMarkedForLoading( "CaratInterface", "" ) then
> if not norm = GeneratorsOfGroup( NormalizerInGLnZ( P ) ) then
> Error( "Cryst: NormalizerInGLnZ failed" );
> fi;
> fi;
gap> SpaceGroupsByPointGroupOnRight( P );
[ <matrix group with 4 generators>, <matrix group with 4 generators>,
<matrix group with 4 generators>, <matrix group with 4 generators> ]
gap> SpaceGroupsByPointGroupOnRight( P, norm );
[ <matrix group with 4 generators>, <matrix group with 4 generators>,
<matrix group with 4 generators> ]
gap> SpaceGroupsByPointGroupOnRight( P, norm, true );
[ [ <matrix group with 4 generators> ],
[ <matrix group with 4 generators>, <matrix group with 4 generators> ],
[ <matrix group with 4 generators> ] ]
gap> if IsPackageMarkedForLoading( "CaratInterface", "" ) then
> if not ( 3 = Length( SpaceGroupTypesByPointGroupOnRight( P ) ) and
> [1,2,1] = List( SpaceGroupTypesByPointGroupOnRight( P, true ), Length ) )
> then
> Error( "Cryst: NormalizerInGLnZ failed" );
> fi;
> fi;
gap> S := SpaceGroupIT(2,14);
SpaceGroupOnRightIT(2,14,'1')
gap> W := WyckoffPositions(S);
[ < Wyckoff position, point group 1, translation := [ 0, 0 ],
basis := [ ] >
, < Wyckoff position, point group 1, translation := [ 1/3, 2/3 ],
basis := [ ] >
, < Wyckoff position, point group 1, translation := [ 2/3, 1/3 ],
basis := [ ] >
, < Wyckoff position, point group 2, translation := [ 0, 0 ],
basis := [ [ 1, -1 ] ] >
, < Wyckoff position, point group 3, translation := [ 0, 0 ],
basis := [ [ 1, 0 ], [ 0, 1 ] ] >
]
gap> sub := Group([ [ [ 0, -1 ], [ -1, 0 ] ] ]);
Group([ [ [ 0, -1 ], [ -1, 0 ] ] ])
gap> IsSubgroup( PointGroup( S ), sub );
true
gap> WyckoffPositionsByStabilizer( S, sub );
[ < Wyckoff position, point group 1, translation := [ 0, 0 ],
basis := [ [ 1, -1 ] ] >
]
gap> ForAll( W, IsWyckoffPosition );
true
gap> WyckoffBasis( W[4] );
[ [ 1, -1 ] ]
gap> WyckoffTranslation( W[3] );
[ 2/3, 1/3 ]
gap> WyckoffSpaceGroup( W[1] );
SpaceGroupOnRightIT(2,14,'1')
gap> stab := WyckoffStabilizer( W[4] );
Group([ [ [ 0, -1, 0 ], [ -1, 0, 0 ], [ 0, 0, 1 ] ] ])
gap> IsAffineCrystGroupOnRight( stab );
true
gap> orb := WyckoffOrbit( W[4] );
[ < Wyckoff position, point group 2, translation := [ 0, 0 ],
basis := [ [ -2, -1 ] ] >,
< Wyckoff position, point group 2, translation := [ 0, 0 ],
basis := [ [ 1, -1 ] ] >,
< Wyckoff position, point group 2, translation := [ 0, 0 ],
basis := [ [ 1, 2 ] ] >
]
gap> Set(orb);
[ < Wyckoff position, point group 2, translation := [ 0, 0 ],
basis := [ [ -2, -1 ] ] >
]
gap> G := Group( (1,2,3), (2,3,4) );
Group([ (1,2,3), (2,3,4) ])
gap> H := Group( (1,2,3) );
Group([ (1,2,3) ])
gap> C := ColorGroup( G, H );
Group([ (1,2,3), (2,3,4) ])
gap> ColorSubgroup( C ) = H;
true
gap> ColorCosetList( C );
[ RightCoset(Group( [ (1,2,3) ] ),()), RightCoset(Group( [ (1,2,3) ] ),(1,2)
(3,4)), RightCoset(Group( [ (1,2,3) ] ),(1,3)(2,4)),
RightCoset(Group( [ (1,2,3) ] ),(1,4)(2,3)) ]
gap> List( last, x -> ColorOfElement( C, Representative(x) ) );
[ 1, 2, 3, 4 ]
gap> U := Subgroup( C, [(1,3)(2,4)] );
Group([ (1,3)(2,4) ])
gap> IsColorGroup( U );
true
gap> ColorSubgroup( U );
Group(())
gap> ColorCosetList( U );
[ RightCoset(Group( () ),()), RightCoset(Group( () ),(1,3)(2,4)) ]
gap> List( last, x -> ColorOfElement( U, Representative(x) ) );
[ 1, 3 ]
gap> S := SpaceGroupIT( 2, 10 );
SpaceGroupOnRightIT(2,10,'1')
gap> m := MaximalSubgroupClassReps( S, rec( primes := [2] ) );
[ <matrix group with 4 generators>, <matrix group with 3 generators>,
<matrix group with 4 generators> ]
gap> List( last, x -> TranslationBasis(x) = TranslationBasis(S) );
[ false, true, false ]
gap> C := ColorGroup( S, m[1] );; IsColorGroup( PointGroup( C ) );
false
gap> C := ColorGroup( S, m[2] );; IsColorGroup( PointGroup( C ) );
true
gap> sub := MaximalSubgroupClassReps( S, rec( primes := [2] ) );
[ <matrix group with 4 generators>, <matrix group with 3 generators>,
<matrix group with 4 generators> ]
gap> List( sub, Size );
[ infinity, infinity, infinity ]
gap> sub := Filtered( sub, s -> IndexInParent( s ) = 2 );
[ <matrix group of size infinity with 4 generators>,
<matrix group of size infinity with 3 generators>,
<matrix group of size infinity with 4 generators> ]
gap> Length( AffineInequivalentSubgroups( S, sub ) );
2
gap> SpaceGroupSettingsIT( 3, 146 );
"hr"
gap> SpaceGroupOnRightIT( 3, 146 );
SpaceGroupOnRightIT(3,146,'h')
gap> SpaceGroupOnRightIT( 3, 146, 'r' );
SpaceGroupOnRightIT(3,146,'r')
gap> STOP_TEST( "manual.tst", 10000 );
[ Verzeichnis aufwärts0.69unsichere Verbindung
]
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2026-03-28
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