English
subrepresentation
From sub- + representation.
Formed from sub- + representation
Proto-Indo-European *upó ‘up; from below’
Proto-Italic *supo ‘under’
Latin sub ‘under, beneath, below’
English sub-
Proto-Indo-European *bʰuH- ‘to be, become, grow, appear’
…
Latin repraesentō ‘to show, exhibit, display’
Latin repraesentātiō
Old French representacion
Middle English representacioun
English representation
Today it means
noun Given a representation (W,ψ) of (say) a group G, a linear subspace of W which is preserved by the action of G in the sense that g · v ∈ V for all v ∈ V.
Language periods are conventional ranges, not dates for this word.
Etymograph / subrepresentation