holländska-engelska översättning av cea
- central simple algebraThe complex numbers \C form a central simple algebra over themselves, but not over the real numbers \R (the centre of \C is all of \C, not just \R). The quaternions \mathbb H form a 4-dimensional central simple algebra over \RThe concept of central simple algebra over a field K represents a noncommutative analogue to that of extension field over K. In both cases, the object has no nontrivial two-sided ideals and has a distinguished field in its centre, although a central simple algebra need not be commutative and need not have inverses (does not have be a division algebra
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