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Feb 3, 2020 at 9:16 comment added Andrew I agree in the sense that the two different conventions naturally lead one to look either left actions or right actions. It is partly for this reason that Gordon James' classic Springer book on the representation theory of the symmetric group considers right modules.
Feb 3, 2020 at 6:59 comment added Francois Ziegler +1, yet does “act on vectors on the left” mean the matrix or vector is on the left ;-)? (It’s just hopeless.)
S Feb 3, 2020 at 6:26 history answered Per Alexandersson CC BY-SA 4.0
S Feb 3, 2020 at 6:26 history made wiki Post Made Community Wiki by Per Alexandersson