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Dear Forum,

I encountered a problem with the function Read.

Namely, if I have a file in which a BIG permutation group, as well as

its subgroup is stored in the format I give below, GAP starts

MakeStabChain, which in my case is unnecessary and takes forever to

complete (I discovered this by pressing ^C after waiting for a while for

the prompt to appear.)

The format is as follows:

g:=Group(<permutations>);; g.name:="g";; h:=Subgroup(g,[<permutations>]);;

This does NOT happen if the group isn't too big (in my case g is of degree

about 1500 and the number of generators is about 15 for both g and h).

(I can supply the file with it upon request.)

This happens equally for versions 3.3 and 3.4.

(There is a certain way around it, I can keep generators as single

permutations and recreate the group after entering them.)

Regards,

Dima

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