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Error when searching for group family already in the database #6654

@rvisser7

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@rvisser7

When searching for the group "Sp(2, 5)" in the groups database, it returns an error stating that this group has not yet been added to the database:

Image

even though the group is indeed in the database as 120.5, under the name "SL(2,5)" . Similarly, searching for "PSp(2,5)" gives the same error, even though this is also in the database as 60.5.

Perhaps the ("trivial") symplectic families "Sp(2,q)" could maybe be added to the gps_special_names table, or alternatively, we could implement somewhere in the groups code to recognise "Sp(2,q)" as the same as "SL(2,q)". (and similarly "PSp(2,q)" as "PSL(2,q)")?

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