例句與造句

1. Among his leading contributions in this area were the Jacobson Density Theorem, a fundamental theorem in the discipline, and the Jacobson radical, a mathematical structure that plays an important role in analyzing rings.
2. The structure of left primitive rings is completely determined by the Jacobson density theorem : A ring is left primitive if and only if it is isomorphic to a dense subring of the ring of endomorphisms of a left vector space over a division ring.
3. A consequence of the Jacobson density theorem is Wedderburn's theorem; namely that any right artinian simple ring is isomorphic to a full matrix ring of " n " by " n " matrices over a division ring for some " n ".
4. It's difficult to find jacobson density theorem in a sentence. 用jacobson density theorem造句挺難的