GROUP OF ORDER 64 #80
GROUP #80
The MAGMA library number for G is 210
GrpPC : G of order 64 = 2^6
PC-Relations:
G.2^2 = G.6,
G.3^2 = G.5,
G.4^2 = G.6,
G.3^G.1 = G.3 * G.6,
G.3^G.2 = G.3 * G.6,
G.4^G.1 = G.4 * G.5,
G.4^G.2 = G.4 * G.5,
G.4^G.3 = G.4 * G.6
The center of G is abelian of type
[ 2, 4 ]
.
The orders of the terms of the lower central series are
[ 64, 4, 1 ]
.
The orders of the terms of the upper central series are
[ 1, 8, 64 ]
.
The order of the Frattini subgroup is 4.
The exponent of G is 4.
G has 3 conjugacy classes
of maximal elementary abelian p-subgroups. The orders of the maximal
elementary abelian subgroups are
[ 8, 8, 8 ]
.
The orders of the centralizers of the maximal elementary
abelian subgroups are
[ 32, 16, 16 ]
.
The orders of the normalizers of the maximal elementary
abelian subgroups are
[ 64, 64, 64 ]
.
The cohomology ring of G is the quotient of a polynomial
ring in the variables
[
z,
y,
x,
w,
v,
u,
t
]
in degrees
[ 1, 1, 1, 1, 3, 4, 4 ]
, by the ideal generated by the relations
y2
+ zx
+ yx
+ xw
+ w2
,
x2
+ zw
+ yw
,
z2x
,
z2w
+ zxw
+ yxw
+ zw2
+ yw2
+ xw2
+ w3
,
zxv
+ yxv
+ xwv
,
yxw4
+ zw5
+ yw5
+ xw5
+ w6
+ z2yv
+ zywv
+ zwu
+ ywu
+ z2t
+ zxt
+ yxt
+ zwt
+ ywt
+ xwt
+ v2
.
The Hilbert series for the cohomology ring is
-t4 -t2 -t -1 / t7 -3t6+
5t5 -7t4+ 7t3 -5t2+ 3t -1.
Its numerator factors as
(
t4+t2+t+1
)
.
Its denominator factors as
(
t-1
)3
(
t2+1
)2
.
The Krull dimension of the cohomology ring is 3.
The longest regular sequence consists of the generators
u
,
t
.
A homogeneous set of parameters is the set
u
,
t
,
z4
+ z3y
+ zyxw
+ zyw2
+ zw3
+ yw3
+ xw3
+ w4
+ wv
of degrees
[ 4, 4, 4 ]
.
The hypercohomolgy spectral sequence has E2
term:
ROW
(1)
: []
[]
[ zx+ yx+ xw ]
[ zxw+ yxw+ xw2, zyx+ zxw ]
[ zyxw+ yxw2+ xw3 ]
ROW
(0)
: [1]
[ y, z, x, w ]
[ zy, z2, yx, yw, zx, zw, xw, w2 ]
[ zw2, xw2, w3, z2y, z3,
zyx, zyw, yxw, yw2, zxw, v ]
[ zyw2, zv, yxw2, xv, yw3, wv, zw3,
z3y, xw3, w4, zyxw, yv ]
[ w5, zyv, z2v, yxv, ywv, zwv, yxw3, xwv,
yw4, w2v, xw4 ]
[ yw5, w3v, z2yv, z3v, zywv, yxwv,
yw2v, v2, xw2v ]
[ yw3v, wv2, xw3v, w4v,
yv2, zv2, yxw2v ]
[ ywv2, w2v2, w5v,
z2v2 ]
[ yw2v2 ]
Restrictions to Maximal Elementary Abelian
Subgroups
Subgroup E #1
Generated by
[ G.6, G.5, G.2 * G.3 * G.4 * G.5 ]
The cohomology ring of E is a polynomial ring in the
variables
z
,
y
,
x
.
The images of the generators of the cohomology of G
restricted to E are
0
,
z
,
z
,
z
,
zy2
+ zx2
,
z4
+ z2x2
+ x4
,
z4
+ y4
+ z2x2
in the cohomology of E.
The kernel of the restriction to E (Minimal Prime) of the
cohomology of G is generated by
z
,
y
+ w
,
x
+ w
.
Subgroup E #2
Generated by
[ G.6, G.5, G.1 * G.2 * G.4 * G.6 ]
The cohomology ring of E is a polynomial ring in the
variables
z
,
y
,
x
.
The images of the generators of the cohomology of G
restricted to E are
z
,
z
,
0
,
z
,
z3
+ z2y
+ zy2
,
z2x2
+ x4
,
z2y2
+ y4
in the cohomology of E.
The kernel of the restriction to E (Minimal Prime) of the
cohomology of G is generated by
z
+ w
,
y
+ w
,
x
.
Subgroup E #3
Generated by
[ G.1 * G.5, G.6, G.5 ]
The cohomology ring of E is a polynomial ring in the
variables
z
,
y
,
x
.
The images of the generators of the cohomology of G
restricted to E are
z
,
0
,
0
,
0
,
z2y
+ zy2
,
z2x2
+ x4
,
z2y2
+ y4
in the cohomology of E.
The kernel of the restriction to E (Minimal Prime) of the
cohomology of G is generated by
y
,
x
,
w
.
The nilradical of the cohomology of G is
generated by
y
+ w
,
zw
+ xw
+ w2
.
It is nilpotent of degree 4.
Restrictions to Maximal Subgroups
Maximal Subgroup H #1
Generated by
[ G.2, G.1, G.6, G.4, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number14
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4 * $.5,
$.2^2 = $.4,
$.2^$.1 = $.2 * $.5,
$.3^$.2 = $.3 * $.5
Generated by
[ G.1 * G.4 * G.6, G.4 * G.5 * G.6, G.1 * G.2 * G.4 * G.5 * G.6 ]
of type
Cyclic(4) x Dihedral(8)
.
The images of the generators of the cohomology of G
restricted to H are
y
+ x
,
x
,
0
,
z
+ y
+ x
,
x3
+ zw
+ xw
+ zv
+ xv
,
y2w
+ x2w
+ w2
,
zx3
+ zxw
+ zxv
+ w2
+ v2
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
x
.
Maximal Subgroup H #2
Generated by
[ G.2, G.6, G.4, G.5, G.1 * G.3 * G.6 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number40
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4 * $.5,
$.2^2 = $.4 * $.5,
$.3^2 = $.5,
$.2^$.1 = $.2 * $.4,
$.3^$.2 = $.3 * $.5
Generated by
[ G.2 * G.4 * G.6, G.1 * G.2 * G.3 * G.4 * G.5, G.1 * G.2 * G.3 * G.5 * G.6 ]
.
The images of the generators of the cohomology of G
restricted to H are
z
+ y
,
z
+ y
+ x
,
z
+ y
,
y
+ x
,
zyx
+ y2x
+ w
,
yw
+ t
,
u
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
z
+ x
.
Maximal Subgroup H #3
Generated by
[ G.1 * G.4, G.2, G.3, G.6, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number41
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.5,
$.2^2 = $.4 * $.5,
$.2^$.1 = $.2 * $.4 * $.5,
$.3^$.1 = $.3 * $.4,
$.3^$.2 = $.3 * $.5
Generated by
[ G.1 * G.2 * G.3 * G.4 * G.6, G.1 * G.2 * G.4 * G.5 * G.6, G.2 * G.3 ]
.
The images of the generators of the cohomology of G
restricted to H are
z
+ x
,
z
+ y
+ x
,
z
+ y
,
z
+ x
,
x3
+ w
+ v
+ u
,
zw
+ t
+ s
,
zw
+ xv
+ s
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
z
+ w
.
Maximal Subgroup H #4
Generated by
[ G.1 * G.4, G.2, G.3 * G.4, G.6, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number38
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4 * $.5,
$.2^2 = $.5,
$.2^$.1 = $.2 * $.4 * $.5,
$.3^$.1 = $.3 * $.4,
$.3^$.2 = $.3 * $.5
Generated by
[ G.3 * G.4, G.1 * G.2 * G.4 * G.5 * G.6, G.1 * G.3 * G.6 ]
.
The images of the generators of the cohomology of G
restricted to H are
y
+ x
,
x
,
z
+ y
,
z
+ x
,
y3
+ zyx
+ x3
+ zw
+ yw
+ v
+ u
,
zxw
+ yxw
+ w2
+ zv
+ t
,
zy2x
+ yxw
+ zv
+ t
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
z
+ x
+ w
.
Maximal Subgroup H #5
Generated by
[ G.1, G.6, G.4, G.5, G.2 * G.3 * G.6 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number38
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4 * $.5,
$.2^2 = $.5,
$.2^$.1 = $.2 * $.4 * $.5,
$.3^$.1 = $.3 * $.4,
$.3^$.2 = $.3 * $.5
Generated by
[ G.1 * G.2 * G.3 * G.4 * G.5 * G.6, G.1 * G.5 * G.6, G.4 * G.5 * G.6 ]
.
The images of the generators of the cohomology of G
restricted to H are
y
+ x
,
y
,
y
,
z
+ y
,
y3
+ zw
+ xw
+ v
+ u
,
zyw
+ zxw
+ t
,
zy2x
+ yx3
+ zxw
+ w2
+ t
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
y
+ x
.
Maximal Subgroup H #6
Generated by
[ G.2, G.3, G.1, G.6, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number16
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4 * $.5,
$.2^2 = $.4,
$.3^2 = $.5,
$.3^$.1 = $.3 * $.5,
$.3^$.2 = $.3 * $.5
Generated by
[ G.2, G.1 * G.3 * G.6, G.2 * G.3 * G.6 ]
.
The images of the generators of the cohomology of G
restricted to H are
y
,
z
+ x
,
z
+ y
,
0
,
z3
+ yx2
+ zw
+ yw
+ xw
+ v
,
z2w
+ w2
+ u
,
z2w
+ zyw
+ zxw
+ w2
+ zv
+ xv
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
w
.
Maximal Subgroup H #7
Generated by
[ G.6, G.4, G.5, G.1 * G.2, G.2 * G.3 * G.6 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number14
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4 * $.5,
$.2^2 = $.4,
$.2^$.1 = $.2 * $.5,
$.3^$.2 = $.3 * $.5
Generated by
[ G.1 * G.3 * G.4, G.2 * G.3 * G.4, G.2 * G.3 * G.6 ]
of type
Cyclic(4) x Dihedral(8)
.
The images of the generators of the cohomology of G
restricted to H are
z
,
y
+ x
,
z
+ y
+ x
,
z
+ x
,
y3
+ zyx
+ zx2
+ x3
+ zw
+ xw
+ yv
,
x4
+ y2w
+ x2w
+ v2
,
z2yx
+ zxw
+ x2w
+ zyv
+ y2v
+ w2
+ v2
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
z
+ y
+ x
.
Maximal Subgroup H #8
Generated by
[ G.2, G.3 * G.4, G.1, G.6, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number14
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4 * $.5,
$.2^2 = $.4,
$.2^$.1 = $.2 * $.5,
$.3^$.2 = $.3 * $.5
Generated by
[ G.3 * G.4, G.2 * G.5, G.1 * G.5 ]
of type
Cyclic(4) x Dihedral(8)
.
The images of the generators of the cohomology of G
restricted to H are
x
,
z
,
y
,
y
,
y3
+ zw
+ xw
+ zv
+ yv
+ xv
,
zy3
+ z2yx
+ y2w
+ x2w
+ v2
,
y2w
+ zxw
+ zyv
+ y2v
+ zxv
+ w2
+ v2
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
x
+ w
.
Maximal Subgroup H #9
Generated by
[ G.3, G.2 * G.4, G.1, G.6, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number36
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4,
$.2^2 = $.4 * $.5,
$.3^2 = $.4,
$.2^$.1 = $.2 * $.4,
$.3^$.2 = $.3 * $.5
Generated by
[ G.3, G.2 * G.4, G.1 * G.2 * G.3 * G.4 * G.5 * G.6 ]
.
The images of the generators of the cohomology of G
restricted to H are
y
,
z
+ y
,
y
+ x
,
z
+ y
,
y3
+ zyx
+ zx2
+ yw
+ xw
+ xv
,
zy3
+ y3x
+ z2x2
+ w2
,
zy3
+ v2
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
y
+ w
.
Maximal Subgroup H #10
Generated by
[ G.2 * G.4, G.3 * G.4, G.1, G.6, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number39
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4 * $.5,
$.2^2 = $.5,
$.3^2 = $.5,
$.2^$.1 = $.2 * $.4,
$.3^$.2 = $.3 * $.5
Generated by
[ G.2 * G.4, G.3 * G.4, G.1 * G.3 * G.4 * G.6 ]
.
The images of the generators of the cohomology of G
restricted to H are
z
,
x
,
z
+ y
,
z
+ y
+ x
,
z3
+ zyx
+ yw
+ v
,
z4
+ w2
,
z4
+ z2w
+ y2w
+ w2
+ zv
+ u
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
y
+ x
+ w
.
Maximal Subgroup H #11
Generated by
[ G.3, G.6, G.4, G.5, G.1 * G.2 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number16
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4 * $.5,
$.2^2 = $.4,
$.3^2 = $.5,
$.3^$.1 = $.3 * $.5,
$.3^$.2 = $.3 * $.5
Generated by
[ G.3, G.1 * G.2 * G.3, G.4 ]
.
The images of the generators of the cohomology of G
restricted to H are
z
,
z
,
z
+ y
,
x
,
yx2
+ zw
+ yw
+ xw
+ v
,
u
,
z4
+ yx3
+ z2w
+ zyw
+ zxw
+ w2
+ zv
+ xv
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
z
+ y
.
Maximal Subgroup H #12
Generated by
[ G.1 * G.4, G.3, G.2 * G.4, G.6, G.5 ]
.
The group H is abelian of type
[ 4, 4, 2 ]
The cohomology ring of H is a the quotient of
a polynomial ring in the variables
[
z,
y,
x,
w,
v
]
, in degrees
[ 1, 1, 1, 2, 2 ]
, by the ideal of relations
z2
,
y2
.
The images of the generators of the cohomology of G
restricted to H are
y
,
x
,
z
+ y
+ x
,
y
+ x
,
zyx
+ yx2
+ x3
+ zw
+ yw
+ xw
+ zv
+ yv
+ xv
,
x4
+ x2v
+ v2
,
zyx2
+ zyw
+ yxw
+ zyv
+ yxv
+ x2v
+ w2
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
z
+ y
+ w
.
Maximal Subgroup H #13
Generated by
[ G.1 * G.4, G.2 * G.4, G.3 * G.4, G.6, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number15
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.3,
$.2^2 = $.5,
$.4^2 = $.5,
$.4^$.2 = $.4 * $.5
Generated by
[ G.1 * G.2 * G.6, G.2 * G.4, G.3 * G.4 ]
of type
Cyclic(4) x Quaternion(8)
.
The images of the generators of the cohomology of G
restricted to H are
z
,
z
+ y
,
x
,
y
+ x
,
xw
,
x2w
+ w2
,
zyx2
+ zxw
+ v
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
z
+ y
+ x
+ w
.
Maximal Subgroup H #14
Generated by
[ G.3, G.1, G.6, G.4, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number41
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.5,
$.2^2 = $.4 * $.5,
$.2^$.1 = $.2 * $.4 * $.5,
$.3^$.1 = $.3 * $.4,
$.3^$.2 = $.3 * $.5
Generated by
[ G.1, G.3 * G.4 * G.6, G.4 ]
.
The images of the generators of the cohomology of G
restricted to H are
x
,
0
,
z
,
z
+ y
,
z2x
+ u
,
t
,
xv
+ t
+ s
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
y
.
Maximal Subgroup H #15
Generated by
[ G.2, G.3, G.6, G.4, G.5 ]
.
The Group H is Isomorphic to the
Group of Order 32 Number37
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.4,
$.2^2 = $.4 * $.5,
$.3^2 = $.4,
$.2^$.1 = $.2 * $.4 * $.5,
$.3^$.1 = $.3 * $.4,
$.3^$.2 = $.3 * $.5
Generated by
[ G.2, G.3 * G.4 * G.5 * G.6, G.2 * G.3 ]
.
The images of the generators of the cohomology of G
restricted to H are
0
,
z
+ y
,
z
+ x
,
x
,
z2x
+ zyx
+ zw
+ yw
+ xw
+ v
,
w2
,
y2w
+ zxw
+ yxw
+ w2
+ u
in the cohomology of H.
The kernel of the restriction to H of the
cohomology of G is generated by
z
.
The essential cohomology of G is zero.
Inflations from Maximal Quotient Groups
Maximal Quotient Group Q #1.
The kernel of the quotient is generated by
G.5 * G.6
.
The Group Q is Isomorphic to the
Group of Order 32 Number10
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.5,
$.2^2 = $.5,
$.3^$.2 = $.3 * $.5,
$.4^$.2 = $.4 * $.5
of type
Cyclic(2) x AlmostExtraSpecial(16)
.
The generators of G have images
[ pcy.1 * pcy.2 * pcy.3 * pcy.5, pcy.2, pcy.1 * pcy.4 * pcy.5, pcy.4 ]
in the quotient group.
The images of the generators of the cohomology of Q
inflated to G are
y
+ w
,
x
+ w
,
w
,
z
+ y
,
zy3
+ zyxw
+ yx2w
+ yv
+ wv
+ u
+ t
in the cohomology of G.
The kernel of the inflation to G of the
cohomology of Q is generated by
y2
+ x2
+ xw
,
x2w
+ xw2
.
Maximal Quotient Group Q #2.
The kernel of the quotient is generated by
G.6
.
The Group Q is Isomorphic to the
Group of Order 32 Number10
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.5,
$.2^2 = $.5,
$.3^$.2 = $.3 * $.5,
$.4^$.2 = $.4 * $.5
of type
Cyclic(2) x AlmostExtraSpecial(16)
.
The generators of G have images
[ pcy.1 * pcy.2 * pcy.3 * pcy.4, pcy.1, pcy.3, pcy.4 ]
in the quotient group.
The images of the generators of the cohomology of Q
inflated to G are
x
+ w
,
w
,
y
+ w
,
z
+ w
,
yx3
+ zyxw
+ yx2w
+ yv
+ xv
+ wv
+ t
in the cohomology of G.
The kernel of the inflation to G of the
cohomology of Q is generated by
zy
+ y2
+ zx
+ yx
+ x2
+ zw
+ yw
,
yx2
+ x3
+ x2w
.
Maximal Quotient Group Q #3.
The kernel of the quotient is generated by
G.5
.
The Group Q is Isomorphic to the
Group of Order 32 Number10
GrpPC of order 32 = 2^5
PC-Relations:
$.1^2 = $.5,
$.2^2 = $.5,
$.3^$.2 = $.3 * $.5,
$.4^$.2 = $.4 * $.5
of type
Cyclic(2) x AlmostExtraSpecial(16)
.
The generators of G have images
[ pcy.1 * pcy.3, pcy.2 * pcy.3 * pcy.5, pcy.1 * pcy.4 * pcy.5, pcy.4 ]
in the quotient group.
The images of the generators of the cohomology of Q
inflated to G are
y
+ w
,
x
,
x
+ w
,
z
+ y
,
u
in the cohomology of G.
The kernel of the inflation to G of the
cohomology of Q is generated by
y2
+ yw
+ xw
,
x2w
.
The depth-essential cohomology of G
The depth-essential cohomology of G is the intersection
of the restrictions to the centralizers of the maximal elementary abelian
p-subgroups of rank d+1 where d is the depth of the
cohomology ring. For this group the depth is 2.
There are 3 conjugacy classes of subgroups which
are centralizers of elementary abelian subgroups of rank 3. They are represented
by the subgroups generated by
[ G.3 * G.6, G.2 * G.4 * G.6, G.1 * G.4 * G.5 * G.6 ]
[ G.4 * G.5, G.1 * G.2 * G.4 * G.6, G.1 * G.2 * G.4 * G.5 ]
[ G.2, G.2 * G.5 * G.6, G.1 * G.6 ]
.
The depth-essential cohomology of G is
generated as an ideal by
zx
+ yx
+ xw
.
The annihilator of the depth-essential cohomology has dimension
2
.
The depth-essential cohomology is a free module over
the polynomial subring Q of the cohomology ring of G generated by
u
,
t
.
The depth-essential cohomology is generated as a module
over Q by the elements
[]
[ zx+ yx+ xw ]
[ zxw+ yxw+ xw2, zyx+ zxw ]
[ zyxw+ yxw2+ xw3 ]
Action of Automorphisms
The groups of outer automorphisms of G has order 64, and is generated by 6
elements.
Automorphism #1
The order of the class of the automorphism in the
outer automorphism group is 2.
The images of the generators of G are
G.1 * G.5 * G.6
G.2 * G.5 * G.6
G.3 * G.5 * G.6
G.4
G.5
G.6
.
The images of the generators of the cohomology of G
under the map induced by the automorphism are
z
,
y
,
x
,
w
,
y2w
+ w3
+ v
,
u
,
zy3
+ zyw2
+ t
.
Automorphism #2
The order of the class of the automorphism in the
outer automorphism group is 2.
The images of the generators of G are
G.1 * G.6
G.2 * G.6
G.3
G.4
G.5
G.6
.
The images of the generators of the cohomology of G
under the map induced by the automorphism are
z
,
y
,
x
,
w
,
xw2
+ v
,
u
,
zy3
+ zyxw
+ yx2w
+ z2w2
+ t
.
Automorphism #3
The order of the class of the automorphism in the
outer automorphism group is 2.
The images of the generators of G are
G.1 * G.5 * G.6
G.2 * G.5 * G.6
G.3
G.4
G.5
G.6
.
The images of the generators of the cohomology of G
under the map induced by the automorphism are
z
,
y
,
x
,
w
,
y2w
+ w3
+ v
,
u
,
zy3
+ zyw2
+ t
.
Automorphism #4
The order of the class of the automorphism in the
outer automorphism group is 2.
The images of the generators of G are
G.1 * G.6
G.2
G.3 * G.6
G.4 * G.6
G.5
G.6
.
The images of the generators of the cohomology of G
under the map induced by the automorphism are
z
,
y
,
x
,
w
,
y2w
+ w3
+ v
,
u
,
zy3
+ zyw2
+ t
.
Automorphism #5
The order of the class of the automorphism in the
outer automorphism group is 2.
The images of the generators of G are
G.1 * G.5 * G.6
G.2
G.3 * G.5 * G.6
G.4 * G.5 * G.6
G.5
G.6
.
The images of the generators of the cohomology of G
under the map induced by the automorphism are
z
,
y
,
x
,
w
,
z2y
+ z2w
+ y2w
+ w3
+ v
,
u
,
zy3
+ zyw2
+ t
.
Automorphism #6
The order of the class of the automorphism in the
outer automorphism group is 2.
The images of the generators of G are
G.1 * G.2 * G.4 * G.6
G.4
G.3
G.2 * G.5
G.5
G.6
.
The images of the generators of the cohomology of G
under the map induced by the automorphism are
z
,
z
+ w
,
x
,
z
+ y
,
z3
+ v
,
u
,
z3y
+ y3w
+ yx2w
+ t
.
CHECKS
paramflag =
true
qregflagflag =
true
cmflag =
false
essflag =
true
centflag =
true
THE COMPUTATION IS COMPLETE