Welcome to the company ! we have many years of professional experience !

rsdzd@pyzyrsd.com
+86 13525609655

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.

Certificate of Honor

patent for invention

patent for invention

patent for invention

patent for invention

patent for invention

cylinder liner boring

soft question - What are some deep theorems and why are ...

Basics of Lie algebra theory (Engel's ,theorem,, Lie's ,theorem,) are still not trivial (remember the hackery used to apply a nonnegative-sum-of-squares argument over an arbitrary field of characteristic $0$ ?). I always found the basics of semisimple algebras (,double centralizer theorem,, Artin-Wedderburn) mysterious and their proofs unmotivated.

Skolem–Noether theorem and similar topics | Frankensaurus.com

Double centralizer theorem, In the branch of abstract algebra called ring theory, the ,double centralizer theorem, can refer to any one of several similar results. These results concern the ,centralizer, of a subring S of a ring R, denoted CR(S) in this article.

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.

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

Groups (Handwritten notes) - MathCity.org

Groups (Handwritten notes,) [Cube root of unity group] Name ,Groups (Handwritten notes,)- Lecture Notes Author(s) Atiq ur Rehman Pages 82 pages Format PDF and DjVu (see Software section for PDF or DjVu Reader Size PDF: 4.48MB, DjVu: 3.56MB CONTENTS OR SUMMARY: * Groups; ,definition, and examples

The Relationship between Two Involutive Semigroups and Is ...

Theorem, 10. Let be a -algebra and be a -mapping. Then is a -algebra if and only if is an isometry. Proof. Let be a -algebra. Then, by ,Theorem, 8, (ii), is an isometry. For the converse, by Lemma 1, is a multiplier and, is a ,double centralizer,. So, by ,Theorem, 9, is a -algebra.

Business cooperation

+86 13525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City