presymplectic en · ADJ
Etymology
From pre- + symplectic.
Meanings
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(not-comparable) prior to the introduction of symplectic geometry
We also find a list of thirteen invariants, each of which is the dimension of a space constructed from the relation, such that the 13-vector of multiplicities and the 13-vector of invariants are related by an invertible matrix over #92;mathbbZ. It turns out to be simpler to do the analysis above for isotropic relations between presymplectic vector spaces.
2015, Jonathan Lorand, Alan Weinstein, “Decomposition of (co)isotropic relations”, in arXiv: