symplectic group
A mathematical term from symplectic geometry and Lie group theory. Refers to the group of linear transformations preserving a non-degenerate skew-symmetric bilinear form.
The symplectic group plays an important role in symplectic geometry.
The term 斜交群 is a direct translation of the English 'symplectic group', combining 斜交 (oblique intersection, skew-symmetric) and 群 (group). The exact historical derivation is uncertain; the spelling is conventionally associated with this mathematical concept.