英语词汇“direct sum”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

direct sum n. Mathematics a set regarded formally as the sum of sets X₁,…,X_n, consisting of ordered n-tuples (x₁,…,x_n), where x_i ∈ X_i, and distinguished from a direct product only in the case of an infinite number of sets, the direct sum consisting only of sequences containing a finite number of non-zero elements.

ΚΠ

1908 Proc. London Math. Soc. 6 109 An algebra, which has a modulus, can be expressed uniquely as the direct sum of a number of irreducible algebras.

1971 M. B. Powell & G. Higman Finite Simple Groups iii. 149 V is completely reducible, i.e., a direct sum of irreducible modules.

2005 Math. Mag. 78 221 We can write the group as a direct sum of cyclic groups.

单词	direct sum
释义	> as lemmas direct sum direct sum n. Mathematics a set regarded formally as the sum of sets X₁,…,X_n, consisting of ordered n-tuples (x₁,…,x_n), where x_i ∈ X_i, and distinguished from a direct product only in the case of an infinite number of sets, the direct sum consisting only of sequences containing a finite number of non-zero elements. ΚΠ 1908 Proc. London Math. Soc. 6 109 An algebra, which has a modulus, can be expressed uniquely as the direct sum of a number of irreducible algebras. 1971 M. B. Powell & G. Higman Finite Simple Groups iii. 149 V is completely reducible, i.e., a direct sum of irreducible modules. 2005 Math. Mag. 78 221 We can write the group as a direct sum of cyclic groups. extracted from directadj.adv. < as lemmas
随便看	boodle game boodled boodleism boodleistic boodleize boodler boodlerism boodlers boodlery boodles boodling boody booed booer boof boofhead boofheaded boofy boogalee boogaloo boogaloo orchestra boogaloo style boogalooed boogalooing boogaloos

> as lemmas