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1)  ring of algebraic integers
代数整数环
2)  ring of algebraic integral numbers
代数整元环
3)  algebraic integer
代数整数
1.
The paper uses the tools about algebraic number theory to find a class of quartic algebraic integer ±p~(1/2)±q~(1/2),then,it is determined and proved that their minimal polynomial is [x2-(p+q)]2-4pq,and in their normal closure,there are four real inserts and no complex inserts.
用代数数论的有关工具,找到了一类Q上四次代数整数±p~(1/2)±q~(1/2),确定并证明了它们的极小多项式是[x2-(p+q)]2-4pq,其正规闭包有4个实嵌入且没有复嵌入。
2.
Smyth proposed the following problem: Let r≥0 be a given integer, one tries to find all totally positive algebraic integers a which satisfya) Tr(α) - deg(α) = r;b)α_i >0, i = 1,…,d,whereα_i are the conjugates ofα(setα_1 = a), Tr(α) = a_1 +α_2+…+α_d is the trace ofα, and d = deg(α) is the degree of its minimal polynomial.
Smyth[24]提出的如下问题,设整数r≥0,寻找满足下列条件的代数整数α:其中,α_i为α的极小多项式的共轭根(设α_1=α),Tr(α)=α_1+α_2+…+α_d,称为α的迹。
3.
Let beαalgebraic integer of degree d, not 0 or a root of unity, all of whose conjugatesα_i are confined to a set S_θ= {α_i∈C : |arg(α_i)|≤θ}, 0 <θ< (?), i = 1,2,…, d.
设α是一个次数为d的代数整数,α≠0且非单位根。
4)  prime algebraic integral number
质代数整数
1.
if m≡1 (mod4), shown properties of Garssin integraldomain R(m~(1/2)) = Z[ω] Structure of quotient rings and critical condition of prime algebraic integral number.
当m≡1(mod4)时,证明了高斯整环R(m~(1/2))=Z[ω]的一些性质:R(m~(1/2))的商环的结构和R(m~(1/2))中质代数整数的判别条件。
5)  integral algebraic(al)
代数整的
6)  quadratic imaginary simple algebraic integral domain
二次虚单纯代数整环
1.
In this paper,we extends the integral domain to the quadratic imaginary simple algebraic,integral domain,discusses the reductive factorization of which and the integral domain with the Euclid property,and obtains a part of integral domain which can be factorized uniquely in the quadratic imaginary simple algebraic integral domain.
该文把整数环扩充到二次虚单纯代数整环,讨论了二次虚单纯代数整环的可既约分解性,进一步探讨了具有Euclid性质的整环,从而得到了二次虚单纯代数整环中能够实现唯一分解的一部分整环。
补充资料:十六元环大环内酯类抗生素
分子式:
CAS号:

性质:以十六元内酯环为配基,与氨基糖或中性糖通过苷键相连组成的一类抗生素。一般由链霉菌与小单孢菌产生,分为6个亚类。(1)连有1个氨基糖的:有蔷薇霉素、卷霉素、幼霉素、德塔霉素A1~A3等。(2)连有1个氨基糖,在氨基糖上又连1个中性糖的:有柱晶白霉素A1~A9,U,V、交沙霉素、麦迪霉素A1~A4、碳霉素A,B、麦里多霉素I~VII等。(3)连有氨基糖与中性糖各1个的:有安哥拉霉素、麦那霉素I~V等。(4)连有氨基糖与中性糖各1个,在氨基糖上又连1个中性糖的;有泰乐霉素A~D、大霉素。(5)连有2个氨基糖的:有螺旋霉素I~III。(6)连有2个中性糖的:有中性霉素、查耳霉素等。临床应用的天然十六元环大环内酯有:柱晶白霉素、交沙霉素、麦迪霉素与螺旋霉素;半合成产品有:乙酰螺旋霉素、美欧卡霉素、罗它霉素等,较天然品的药物动力学性能有所改善。这些抗生素抗菌谱与红霉素等十四元大环内酯相同,抗菌活性稍低,并有交叉耐药性,但对细菌无诱导耐药性。临床适应症与红霉素相同,泰乐霉素作为动物药,用于家畜各种细菌感染。

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