| Aitken's mathematical work was in statistics, numerical analysis, and algebra. |
| The book contained the elements of geometry and algebra in addition to the calculus. |
| In complex number algebra, rationalization is the equivalent of the simplification of fractions in ordinary algebra. |
| Attempts to create an analogous structure theory for alternative algebras were begun long ago.
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| His work allowed computations in groups to be replaced by computations in certain polynomial algebras over the field of p elements. |
| Two methods of studying the invertibility of operators belonging to the above-mentioned algebras are described. |
