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Dear Gap-Forum,

We have a problem with the lattice of subgroups of a perfect group. We =

thought that the lattice was found with cyclic extension methods in Gap. =

Now we have found several examples which in our opinion can not be =

found by cyclic extension. Our question is now: thus Gap work with =

cyclic extension to find de lattice of a perfect groups, (or to find the =

conjugacyrepresentatives) ??

Bj=F6rn

Last years student math

Waversebaan 255

3001 HEVERLEE

Belgium

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<DIV><FONT face=3DArial size=3D2>Dear Gap-Forum,</FONT></DIV>

<DIV><FONT face=3DArial size=3D2></FONT> </DIV>

<DIV><FONT face=3DArial size=3D2>We have a problem with the lattice of =

subgroups of=20

a perfect group. We thought that the lattice was found with cyclic =

extension methods in Gap. Now we have found several examples which =

in our=20

opinion can not be found by cyclic extension. Our question is =

now: thus Gap work with cyclic extension to find de lattice of a =

perfect=20

groups, (or to find the conjugacyrepresentatives) ??</FONT></DIV>

<DIV><FONT face=3DArial size=3D2></FONT> </DIV>

<DIV><FONT face=3DArial size=3D2>Bj=F6rn</FONT></DIV>

<DIV><FONT face=3DArial size=3D2>Last years student math</FONT></DIV>

<DIV><FONT face=3DArial size=3D2>Waversebaan 255</FONT></DIV>

<DIV><FONT face=3DArial size=3D2>3001 =

HEVERLEE<BR>Belgium</FONT></DIV></BODY></HTML>

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