搜索结果: 106-120 共查到“理学 rings”相关记录156条 . 查询时间(0.078 秒)
这篇论文证明:设$R$是素环,$d$是$R$的微商,$L$是$R$的一个非中心Lie理想,并且$[d(u),u]^{n}$在中心对,对所有的$u\in L$成立,则$R$一定满足$s_{4}$,四个变量的标准恒等式.这篇论文中结果改进了 Carini和Filippis的结果.
Let ${\scr R}$ and $\scr S$ be arbitrary associative rings. A mapping $\varphi$ of ${\scr R}$ onto $\scr S$ is called a multiplicative isomorphism if $\varphi$ is bijective and satisfies $ \varphi(xy)...
Exchange rings generated by their units
置换环 本原分式环 强$\pi$正则环
2007/12/10
假设$R$为本原分式Artinian环,证明了有$u\in U(R)$使得$1_R\pm u\in U(R)$ 当且仅当对任何$a\in R$, 有$u\in U(R)$使得$a\pm u\in U(R)$. 进一步，证明了 对任何$A\in M_n(R)(n\geq 2)$, 有$U\in GL_n(R)$ 使得$A\pm U\in GL_n(R)$. 作为应用得到了强$\pi$正则环中任何元素...
Quantum Rings with Two Deeply Bound Electrons under a Magnetic Field
quantum ring fractional Aharonov-Bohm oscillation persistent current
2007/8/15
2007Vol.47No.4pp.733-736DOI:
Quantum Rings with Two Deeply Bound Electrons under a Magnetic Field
SITU Shu-Ping
Department of Physics, Sun Yat-Sen University, Guangzhou ...
Persistent Current in Two Connected Mesoscopic Rings with Reservoirs
persistent current Aharonov-Bohm effects mesoscopic rings
2007/8/15
2003Vol.39No.3pp.359-364DOI:
Persistent Current in Two Connected Mesoscopic Rings with Reservoirs
WEI Jian-Hua,1 CHEN Yan-Xue,1 XIE Shi-Jie,1
MEI Liang-Mo,1 and HONG Jongbae2
...
期刊信息
篇名
Separativity and stable range for formal triangular matrix rings
语种
英文
撰写或编译
作者
Qisheng Li,Wenting Tong
第一作者单位
刊物名称
Northeast. Math. J.
页面
19(1), 51-56, 2003.
出版日期
2003年
月
日
文章标识(ISSN)
相关项目
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Distribution of Circles on a Circle and Correlation Between Vortex Rings of Superfluids
Superfluid vortex vortex rings vortex pattern circles on a circle
2010/4/9
Superfluids are characterized by absence of viscosity. When superfluids are rotated, differently from normal fluids, they form more than one vortex in the containers where they are placed. The number ...
Certain Rings Whose Simple Singular Modules Are nil-injective
Left minimal elements Left min-abel rings Strongly left min-abel rings Left MC2 rings Simple singular modules Left nil- injective modules
2010/2/25
In this paper, we first study some characterizations of left min-abel ring, strongly left min-abel ring and left MC2 ring. Next, we discuss and generalize some well known results for a ring whose simp...
Two Electrons in Vertically Coupled One-Dimensional Rings
Quantum rings Two-electron energies Trigonometric sweep method
2010/9/25
A problem of two electrons spatially separated in vertically coupled one-dimensional rings is solved exactly by using the numerical trigonometric sweep method. The change of the level-ordering and the...
Two Vertically Coupled Quantum Rings with Tunneling
Quantum ring Tunneling Many-body effects Ground state
2010/9/25
We study the effect of tunneling on the electronic structure of two vertically coupled quantum rings within the spin density functional theory. The ground state configurations of the coupled rings are...
The Role of the Boundary Conditions on the Critical Properties of Superconducting Rings Under the Action of a Tranversal Magnetic Field
Superconducting rings Ginzburg-Landau
2010/9/25
In the framework of the Ginzburg-Landau (GL) theory in the limit of a GL parameter much larger than unity, we study theoretically the critical behavior of a mesoscopic superconducting ring with neglig...
It has recently been shown that the M theory lift of a IIA 4D BPS Calabi-Yau black hole is a 5D BPS black hole spinning at the center of a Taub-NUT-flux geometries, and a certain linear relation betwe...
We study higher-order corrections to two BPS solutions of 5D supergravity, namely the supersymmetric black ring and the spinning black hole. Due in part to our current relatively limited understanding...
Synthesis and Characterization of New Triheterocyclic Compounds Consisting of 1,2,4-Triazol-3-one, 1,3,4-Thiadiazole and 1,3,4-Oxadiazole Rings
1,2,4-triazol-3-one 1,3,4-thiadiazole 1,3,4-oxadiazole thiosemicarbazide diazotation deamination
2010/4/20
A series of acetic acid derivatives (2a-c) was synthesized by the condensation of compounds 1a-c with chloroacetic acid. The treatment of carboxylic acid derivatives with thiosemicarbazide in phospho...
Note on Generalized Jordan Derivations Associate with Hochschild 2-cocycles of Rings
Derivation Jordan derivation generalized derivation generalized Jordan derivation Hochschild 2-cocycle
2010/2/26
We introduce a new type of generalized derivations associate with Hochschild 2-cocycles and prove that every generalized Jordan derivation of this type is a generalized derivation under certain condit...