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Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Centralizer and normalizer — Wikipedia Republished // WIKI 2

In mathematics, especially group theory, the ,centralizer, (also called commutant) of a subset S in a group G is the set of elements C G ( S ) {\\displaystyle C_{G}(S)} of G such that each member g ∈ C G ( S ) {\\displaystyle g\\in C_{G}(S)} commutes with each element of S, or equivalently, such that conjugation by g {\\displaystyle g} leaves each element of S fixed. The normalizer of S in G ...

CENTRALIZERS OF ELEMENTS IN A GROUP A …

subgroups. The ,centralizer, of an element is not contained in the ,centralizer, of an-other element if and only if it is the ,centralizer, of an involution with trivial ,double centralizer,. We give an example of two conjugate involutions whose centralizers intersect in 1991 Mathematics Subject Classification. Primary 20E08. ©1994 American ...

THE DOUBLE CENTRALIZER ALGEBRA

THE ,DOUBLE CENTRALIZER, ALGEBRA AS A LINEAR SPACE 101 (3) 1C(A) is an essential A-module under both left and right actions; (4) If A is separable, then A has an identity. Proof. (1) implies (2) is clear. To show (2) -- (3), let le ,IP EPbe an approximate identity for A and let a = a I lo(A). Let V = nol-1 Vn n n

Centralizer and normalizer - Infogalactic: the planetary ...

Definitions Groups and semigroups. The ,centralizer, of a subset S of group (or semigroup) G is defined to be. Sometimes if there is no ambiguity about the group in question, the G is suppressed from the notation entirely. When S={a} is a singleton set, then C G ({a}) can be abbreviated to C G (a).Another less common notation for the ,centralizer, is Z(a), which parallels the notation for the ...

RESULTS RELATING TO MULTIPLIERS AND DOUBLE …

A left ,centralizer, is a bounded linear operator T from the Banach algebra A into Itself that satisfies the identity T(xy)=x(Ty), for all X and y In A. A right ,centralizer, Is defined analogously. A multiplier is a two-sided ,centralizer, while a ,double centralizer, Is an ordered pair (T',T") of functions from A into Itself such

CUBIC DOUBLE CENTRALIZERS AND CUBIC MULTIPLIERS

A is said to be left ,centralizer, on A if L(ab) = L(a)b for all a;b 2 A. Similarly, a linear mapping R: A ! A that R(ab) = aR(b) for all a;b 2 A is called right ,centralizer, on A. A ,double centralizer, on A is a pair (L;R), where L is a left ,centralizer,, R is a right ,centralizer, and aL(b) = R(a)b for all a;b 2 A.

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