A group representation restriction is the group representation of a subgroup obtained by restricting a group
representation of a group
on a vector space
. For example, the symmetric
group on three letters has a group representation
on
,
using permutation products composed from left to
right, given by
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(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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that can be restricted to the subgroup of group order 3,
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(7)
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(8)
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(9)
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