CAIFI

In mathematics, a left (or right) quaternionic vector space is a left (or right) H-module where H denotes the noncommutative ring of the quaternions.

The space Hⁿ of n-tuples of quaternions is both a left and right H-module using the componentwise left and right multiplication:

$q(q_{1},q_{2},\ldots q_{n})=(qq_{1},qq_{2},\ldots qq_{n})$

$(q_{1},q_{2},\ldots q_{n})q=(q_{1}q,q_{2}q,\ldots q_{n}q)$

for quaternions q and q₁, q₂, ... q_n.

Since H is a division algebra, every finitely generated (left or right) H-module has a basis, and hence is isomorphic to Hⁿ for some n.

See also

• Vector space
• General linear group
• Special linear group
• SL(n,H)
• Symplectic group

References

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