So, the addition and multiplication we are used to using are commutative. |
His early works range over number theory, statistics, combinatorics, game theory, as well as his principal interest of commutative algebra. |
In the 1840s, the Irish mathematician William Hamilton found that multiplication was not commutative in all number systems. |
Homomorphic mappings of rings into fields are very common in commutative algebra and in its applications. |
Using the fact that polynomial rings are Noetherian, show that every finitely generable commutative ring is finitely presentable. |
The associative, commutative, and distributive laws of elementary algebra are valid for the dot multiplication of vectors. |