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An Algorithm of Witten's Invariants of Some 3-manifolds
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作者 李起升 《Chinese Quarterly Journal of Mathematics》 CSCD 1996年第2期95-97,共3页
In this paper, I give out an algorithm of the witten' s invariants of the 3-manifolds obtained by surgery on the links whose corresponding graphs may be no longer trees.
关键词 witten' s invariants 3-manifolds LINKS
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弦反常中的指标定理与Witten模函数 被引量:1
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作者 颜骏 陶必友 《四川师范大学学报(自然科学版)》 CAS CSCD 2000年第6期621-623,共3页
:用简洁的方法研究了旋流形M上的指标定理和Witten模函数 。
关键词 弦反常 指标定理 witten模函数 量子场论 旋流形
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同调三维球面的U(1)等变Seiberg-Witten-Floer同调群(英文)
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作者 凌生智 缪平 胡建勋 《中山大学学报(自然科学版)》 CAS CSCD 北大核心 2001年第1期24-28,共5页
通过对Chern-Simons泛函应用Morse-Bott理论,Z-同调三维球面的等变Seiberg-Witten-Floer下同调群和上同调群,以及它们的配对和模结构能够被定义,并且还可证明它们是拓扑不变量.
关键词 U(1)等变 SEIBERG-witten-FLOER同调群 拓扑不变量 CHERN-SIMON泛函 Z-同调三维球面 配对 模结构
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两类Witten-Laplacian算子Dirichlet边值问题的第一特征值
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作者 邓义华 肖娟 李元旦 《中山大学学报(自然科学版)》 CAS CSCD 北大核心 2014年第2期156-158,共3页
首先在Rn的有界开区域Ω上讨论了一类Witten-Laplacian算子Dirichlet边值问题的第一特征值,得到了这类特征值下界的一个较好的估计。然后,在区间(-d,d)上讨论了另一类Witten-Laplacian算子Dirichlet边值问题的第一特征值,得到了这类特... 首先在Rn的有界开区域Ω上讨论了一类Witten-Laplacian算子Dirichlet边值问题的第一特征值,得到了这类特征值下界的一个较好的估计。然后,在区间(-d,d)上讨论了另一类Witten-Laplacian算子Dirichlet边值问题的第一特征值,得到了这类特征值的准确值。 展开更多
关键词 witten-Laplacian算子 DIRICHLET边值问题 第一特征值 Rieman流形
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G_(n,2)的Witten复形的同调群
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作者 何刚 李明 杨莹 《西南师范大学学报(自然科学版)》 CAS CSCD 北大核心 2013年第8期35-40,共6页
通过研究实Grassmann流形Gn,2的Witten复形,给出了该复形的同调群的具体公式.根据Witten复形的基本结论可知,Gn,2的Witten复形的同调群恰是Gn,2的整系数奇异同调群.
关键词 GRASSMANN流形 witten复形 同调群
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Witten法DMT生产工艺改进的研究
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作者 张敏华 吕惠生 谈遒 《石油化工》 CAS CSCD 北大核心 1997年第6期387-392,共6页
保持原有Witen法流程技术优势的前提下,采用先进的反应器和分离技术,开发了以混合氧化、混合酯化、减压结晶、特殊精馏和分步结晶为主要特征的Improved-Witen法DMT生产新工艺。新工艺克服了原流程中存在的种种... 保持原有Witen法流程技术优势的前提下,采用先进的反应器和分离技术,开发了以混合氧化、混合酯化、减压结晶、特殊精馏和分步结晶为主要特征的Improved-Witen法DMT生产新工艺。新工艺克服了原流程中存在的种种不合理过程,流程缩短了30%,并减少了循环流股,提高了设备生产能力,部分关键技术已在DMT生产装置上得到应用。Improved-Witen法为DMT生产装置的扩产改造提供了技术基础,同时与Amoco法相比较更具有竞争力。 展开更多
关键词 witten DMT 对苯二甲酸 二甲酯 生产工艺
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Seiberg-Witten理论上的光滑群作用
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作者 刘西民 陈小柱 《商丘师范学院学报》 CAS 2001年第2期40-42,共3页
设L是闭定向光滑 4 流形X上一复线丛 ,其第一陈类满足c1(L) =ω2 (TX)mod2 .G是有限群作为一保持定向的等距作用于X ,同时也作用于L使得投影L→X是一G 映射 .在X具有群作用的情形讨论了Seiberg Witten理论 .研究了Seiberg Witten方程的g... 设L是闭定向光滑 4 流形X上一复线丛 ,其第一陈类满足c1(L) =ω2 (TX)mod2 .G是有限群作为一保持定向的等距作用于X ,同时也作用于L使得投影L→X是一G 映射 .在X具有群作用的情形讨论了Seiberg Witten理论 .研究了Seiberg Witten方程的generic扰动 ,在一定条件下证明了G 展开更多
关键词 Seiberg-witten方程 群作用 光滑流形 微分拓扑不变量 G-不变模空间 generic扰动 有限群
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HIKKO闭弦场论与Witten开弦场论间的代数联系
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作者 岳崇兴 薛晓舟 《河南师范大学学报(自然科学版)》 CAS CSCD 1990年第2期20-24,共5页
本文详细推导证明了若把HIKKO闭弦场论中的“Φ*Ψ”理解成Witten开弦场论中的1/2[Φ*Ψ—(—1)^(‖Φ‖‖Ψ‖)Ψ*′Φ],则两种理论的所有代数形式相同。
关键词 弦场 闭弦场论 开弦场论 代数 场论
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一类扭仿射Nappi-Witten代数上的不可约拟有限模
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作者 陈雪 黄智力 《西南大学学报(自然科学版)》 CAS CSCD 北大核心 2015年第12期53-57,共5页
研究了一类扭仿射Nappi-Witten代数的表示理论,运用Heisenberg代数的表示,证明了该类扭仿射NappiWitten代数上任何非零水平的不可约拟有限模是最高权模或最低权模.
关键词 扭仿射Nappi-witten代数 拟有限模 权模
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Seiberg-Witten不变理论综述
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作者 郑驻军 郭天榜 《河南大学学报(自然科学版)》 CAS 1998年第4期32-35,共4页
从数学的角度简要介绍了Seiberg-Witen不变量的定义、应用及其发展.
关键词 四维流形 S-W不变理论 微分拓扑 黎曼流形
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仿射Nappi-Witten代数的虚Whittaker模 被引量:1
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作者 徐崇斌 《温州大学学报(自然科学版)》 2013年第3期6-10,共5页
利用Heisenberg代数的Whittaker模在仿射Nappi-Witten代数上定义了一类新模,称为虚Whittaker模,并且证明了该类模在一定条件下是个不可约模.
关键词 仿射Nappi-witten代数 HEISENBERG代数 Whittaker模
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POLYNOMIAL REPRESENTATIONS OF THE AFFINE NAPPI-WITTEN LIE ALGEBRA H_4 被引量:1
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作者 陈雪 黄智力 《Acta Mathematica Scientia》 SCIE CSCD 2012年第6期2105-2118,共14页
In this paper, the representation theory for the arlene Lie algebra H4 associated to the Nappi-Witten Lie algebra H4 is studied. Polynomial representations of the affine Nappi-Witten Lie algebra H4 are given.
关键词 affine Nappi-witten Lie algebra POLYNOMIAL REPRESENTATION
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Seiberg-Witten方程的一个注记(英文)
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作者 冯秀红 朱琳 《苏州大学学报(自然科学版)》 CAS 2006年第3期1-5,共5页
在给定增广的旋量空间和双旋量之后,我们考虑Seiberg-Witten方程.本文首先简单介绍了Seiberg-Witten方程,然后具体给出它的双旋量表示.
关键词 双旋量 旋量丛 Seiberg-witten方程
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Nash Embedding of Witten’s M-Theory and the Hawking-Hartle Quantum Wave of Dark Energy 被引量:2
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作者 Mohamed S. El Naschie 《Journal of Modern Physics》 2013年第10期1417-1428,共12页
Euclidean embedding of the 11-dimensional M-theory turned out to require a very large space leaving lavish amounts of 242 dimensional pseudo truly empty “regions” devoid of space and time and consequently of anythin... Euclidean embedding of the 11-dimensional M-theory turned out to require a very large space leaving lavish amounts of 242 dimensional pseudo truly empty “regions” devoid of space and time and consequently of anything resembling ordinary physical energy density. It is shown here using Nash embedding that the ratio of “solid” M-theory spacetime to its required embedding “non-spacetime” is 1/22 for a classical theory and 1/22.18033989 for an analogous fractal theory. This then leads to a maximal ordinary energy density equation equal to that of Einstein’s famous formula E=mc2 but multiplied with in full agreement with previous results obtained using relatively more conventional methods including running the electromagnetic fine structure constant in the exact solution of the hydrogen atom. Consequently, the new equation corresponds to a quantum relativity theory which unlike Einstein’s original equation gives quantitative predictions which agree perfectly with the cosmological measurements of WMAP and the analysis of certain supernova events. Never the less in our view dark energy also exists being the energy of the quantum wave amounting to 95.5 present of the total Einstein theoretical energy which is blind to any distinction between ordinary energy of the quantum particle and the dark energy of the quantum wave. However, since measurement leads to the collapse of the Hawking-Hartle quantum wave, dark energy being a quantum wave non-ordinary energy could not possibly be measured in the usual way unless highly refined quantum wave non-demolition technology is developed if possible. It is a further reason that dark energy having a different sign to ordinary energy is the cause behind the anti gravity force which is pushing the universe apart and accelerating cosmic expansion. Consequently it can be seen as the result of anticlastic Cartan-like curvature caused by extra compactified dimensions of spacetime. A simple toy model demonstration of the effect of curvature in a “material” space is briefly discussed. 展开更多
关键词 NASH Euclidean EMBEDDING QUANTUM Entanglement Dark ENERGY of the QUANTUM WAVE QUANTUM Gravity Ordinary ENERGY of the QUANTUM Particle Hawking-Hartle WAVE of the Cosmos QUANTUM WAVE Non-Demolition witten’s M-THEORY
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On a Fractal Version of Witten’s M-Theory 被引量:12
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作者 Mohamed S. El Naschie 《International Journal of Astronomy and Astrophysics》 2016年第2期135-144,共10页
Starting from Witten’s eleven dimensional M-theory, the present work develops in an analogous way a corresponding dimensional fractal version where . Subsequently, the new fractal formalism is utilized to determine t... Starting from Witten’s eleven dimensional M-theory, the present work develops in an analogous way a corresponding dimensional fractal version where . Subsequently, the new fractal formalism is utilized to determine the measured ordinary energy density of the cosmos which turns out to be intimately linked to the new theory’s fractal dimension via non-integer irrational Lorentzian-like factor: where is Hardy’s probability of quantum entanglement. Consequently, the energy density is found from a limiting classical kinetic energy to be Here, is ‘tHooft’s renormalon of dimensional regularization. The immediate logical, mathematical and physical implication of this result is that the dark energy density of the cosmos must be in astounding agreement with cosmic measurements and observations. 展开更多
关键词 M-THEORY E-Infinity Theory Hardy’s Quantum Entanglement Transfinite Turing Computer Dark Energy Accelerated Cosmic Expansion Noncommutative Geometry Superstring Theory Scale Relativity Cantorian-Fractal Spacetime witten’s Theory ‘tHooft Renormalon Pure Gravity Penrose Tiling
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Cosmic Dark Energy from ‘t Hooft’s Dimensional Regularization and Witten’s Topological Quantum Field Pure Gravity 被引量:1
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作者 Mohamed S. El Naschie 《Journal of Quantum Information Science》 2014年第2期83-91,共9页
We utilize two different theories to prove that cosmic dark energy density is the complimentary Legendre transformation of ordinary energy and vice versa as given by E(dark) = mc2 (21/22) and E(ordinary) = mc2/22. The... We utilize two different theories to prove that cosmic dark energy density is the complimentary Legendre transformation of ordinary energy and vice versa as given by E(dark) = mc2 (21/22) and E(ordinary) = mc2/22. The first theory used is based on G ‘t Hooft’s remarkably simple renormalization procedure in which a neat mathematical maneuver is introduced via the dimensionality of our four dimensional spacetime. Thus, ‘t Hooft used instead of D = 4 and then took at the end of an intricate and subtle computation the limit to obtain the result while avoiding various problems including the pole singularity at D = 4. Here and in contradistinction to the classical form of dimensional and renormalization we set and do not take the limit where and is the theoretically and experimentally well established Hardy’s generic quantum entanglement. At the end we see that the dark energy density is simply the ratio of and the smooth disentangled D = 4, i.e. (dark) = (4 -k)/4 = 3.8196011/4 = 0.9549150275. Consequently where we have ignored the fine structure details by rounding 21 + k to 21 and 22 + k to 22 in a manner not that much different from of the original form of dimensional regularization theory. The result is subsequently validated by another equally ingenious approach due mainly to E. Witten and his school of topological quantum field theory. We notice that in that theory the local degrees of freedom are zero. Therefore, we are dealing essentially with pure gravity where are the degrees of freedom and is the corresponding dimension. The results and the conclusion of the paper are summarized in Figure 1-3, Table 1 and Flow Chart 1. 展开更多
关键词 Accelerated COSMIC Expansion 't Hooft-Veltman Dimensional Regularization Wilson RENORMALIZATION PURE GRAVITY witten’s TOPOLOGICAL Quantum Field E-INFINITY Cantorian Spacetime
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From Witten’s 462 Supercharges of 5-D Branes in Eleven Dimensions to the 95.5 Percent Cosmic Dark Energy Density behind the Accelerated Expansion of the Universe 被引量:1
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作者 Mohamed S. El Naschie 《Journal of Quantum Information Science》 2016年第2期57-61,共5页
The measured 95.5% dark energy density of the cosmos presumed to be behind the observed accelerated cosmic expansion is determined theoretically based upon Witten’s five branes in eleven dimensions theory. We show th... The measured 95.5% dark energy density of the cosmos presumed to be behind the observed accelerated cosmic expansion is determined theoretically based upon Witten’s five branes in eleven dimensions theory. We show that the said dark energy density is easily found from the ratio of the 462 states of the five dimensional Branes to the total number of states, namely 528 minus the 44 degrees of freedom of the vacuum, i.e. , almost exactly as found in WMAP and Type 1a supernova measurements. 展开更多
关键词 Number Theory witten Branes Dark Energy Superstrings Cosmic Expansion Type 1a Supernova E-INFINITY Exceptional Lie Symmetry Groups
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平坦欧氏空间R ̄8上Seiberg-Witten方程的解
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作者 贾方 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 1997年第6期746-751,共6页
讨论了R8上Seiberg-Witen方程解的性质.
关键词 S-W方程 平坦欧氏空间 柯西-黎曼算子
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Einstein’s General Relativity and Pure Gravity in a Cosserat and De Sitter-Witten Spacetime Setting as the Explanation of Dark Energy and Cosmic Accelerated Expansion
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作者 Mohamed S. El Naschie 《International Journal of Astronomy and Astrophysics》 2014年第2期332-339,共8页
Ordinary energy and dark energy density are determined using a Cosserat-Cartan and killing-Yano reinterpretation of Einstein’s special and general relativity. Thus starting from a maximally symmetric space with 528 k... Ordinary energy and dark energy density are determined using a Cosserat-Cartan and killing-Yano reinterpretation of Einstein’s special and general relativity. Thus starting from a maximally symmetric space with 528 killing vector fields corresponding to Witten’s five Branes model in eleven dimensional M-theory we reason that 504 of the 528 are essentially the components of the relevant killing-Yano tensor. In turn this tensor is related to hidden symmetries and torsional coupled stresses of the Cosserat micro-polar space as well as the Einstein-Cartan connection. Proceeding in this way the dark energy density is found to be that of Einstein’s maximal energy mc2 where m is the mass and c is the speed of light multiplied with a Lorentz factor equal to the ratio of the 504 killing-Yano tensor and the 528 states maximally symmetric space. Thus we have E (dark) = mc2 (504/528) = mc2 (21/22) which is about 95.5% of the total maximal energy density in astounding agreement with COBE, WMAP and Planck cosmological measurements as well as the type 1a supernova analysis. Finally theory and results are validated via a related theory based on the degrees of freedom of pure gravity, the theory of nonlocal elasticity as well as ‘t Hooft-Veltman renormalization method. 展开更多
关键词 General RELATIVITY COSSERAT Micro-Polar Space Dark Energy Teleparellelism witten’s M-THEORY De Sitter SPACETIME Killing-Yano Tensor Einstein-Cartan RELATIVITY PURE GRAVITY Kaluza-Klein Theory Nonlocal Elasticity 't Hooft-Veltman Renormalization
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Imaginary Whittaker Modules of the Twisted Affine Nappi-Witten Lie Algebra <img src="http://admin.scirp.org/Editer/attached/image/Edit_fc740d60-7009-4d6f-939a-ac2a113f1539.bmp"alt=""/>
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作者 Xue Chen 《Journal of Applied Mathematics and Physics》 2020年第3期548-554,共7页
The Nappi-Witten Lie algebra was first introduced by C. Nappi and E. Witten in the study of Wess-Zumino-Novikov-Witten (WZNW) models. They showed that the WZNW model (NW model) based on a central extension of the two-... The Nappi-Witten Lie algebra was first introduced by C. Nappi and E. Witten in the study of Wess-Zumino-Novikov-Witten (WZNW) models. They showed that the WZNW model (NW model) based on a central extension of the two-dimensional Euclidean group describes the homogeneous four-dimensional space-time corresponding to a gravitational plane wave. The associated Lie algebra is neither abelian nor semisimple. Recently K. Christodoulopoulou studied the irreducible Whittaker modules for finite- and infinite-dimensional Heisenberg algebras and for the Lie algebra obtained by adjoining a degree derivation to an infinite-dimensional Heisenberg algebra, and used these modules to construct a new class of modules for non-twisted affine algebras, which are called imaginary Whittaker modules. In this paper, imaginary Whittaker modules of the twisted affine Nappi-Witten Lie algebra are constructed based on Whittaker modules of Heisenberg algebras. It is proved that the imaginary Whittaker module with the center acting as a non-zero scalar is irreducible. 展开更多
关键词 TWISTED AFFINE Nappi-witten Lie ALGEBRAS Heisenberg ALGEBRAS Imagi-nary Whittaker MODULES
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