1) torsion free ring 非挠环2) torsion free semiprime ring 2-非挠半素环3) encircle [英][ɪn'sɜ:kl] [美][ɪn'sɝkḷ] 环挠 例句>> 4) torsion free group 非挠群5) torsionfree connection 非挠联络6) inflexibilty 非挠性补充资料:非结合环与非结合代数 非结合环与非...
Their principal result asserts that if k, m, and n are positive integers with mn>1 and R is a ring with 1 which satisfies the identity [x,y] k =[x m ,y n ] and in which commutators are m!n!-torsion free, then R is commutative. Another theorem studies rings R with 1 ...
8.Bending and Torsion problems of Non-homogeous Elastic Circular Ring with Variable Cross-Section under载荷垂直于非均匀变截面弹性园环的弯扭问题 9.Inequitable Agricultural Competition Prevents Free Trade;扭曲的农业国际竞争力对自由贸易环境的影响 10.Study of the regional environmental benefits distribution ...
We establish various properties of this concept, and investigaterings (called torsion-free rings) all of whose right ideals are torsion-free.In a torsion-free ring, the right annihilators of elements are alwaysidempotent flat right ideals. The right p.p. rings are characterized astorsion-free ...
4) ring-torsion angle 芳环扭角 1. The results showed that the ring-torsion angles and the band gap were reduced with decreasing V2,0. 利用改进的Ginder-Epstein模型计算了碱式聚苯胺在参数V2,0不同取值下的自洽变分基态,结果表明芳环扭角和能隙随此参数的减小而缩减。5) torsion free rings 扭...
Corner, ALS (1963) Every countable reduced torsion free ring is an endomorphism ring. Proc. London Math. Soc. 13: pp. 687-710A.L.S. Corner, Every countable reduced torsion-free ring is an endomorphism ring. Proc. Lond. Math. Soc. 13 , 687–710 (1963)...
Goeters, “Examples of torsion-free groups flat as modules over their endomorphism rings,” Comm. Algebra , 19 , No. 1, 1-27 (1991).T. FATICONI AND H. P. GOETERS,Examples of torsion-free groups flat as modules over their endomorphism ring, preprint....
1) torsion-free 挠自由的1. Let N be a zero-symmetric prime nearring,got the following results:(ⅰ)If N is 2-torsion-free,d_1 and d_2 are derivatins of N,then the following three conditions are equivalent:(1)d_1d_2 is a derivation;(2)d_1(x)d_2(y)+d_2(x)d_1(y)=0, ...
Occasionally, healing and scarring from a previous gastric ulcer may leave the stomach with a permanent appearance of thickened folds (Fig 2-41); this can be very focal or involve a large portion of the stomach if the original ulcer was large. These thickened folds are not the norm, howeve...
A moduleMover an entire principal ringRis said to be a torsion module if for any elementxinMthere exists an elementainRsuch thata≠ 0 andax= 0. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. ...