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LORENTZIAN: 作品数：53被引量：61H指数：5; 导出分析报告; 相关领域：理学更多>>; 相关作者：刘海明苗佳晶徐航刘建成刘海明更多>>; 相关机构：东北师范大学西北师范大学牡丹江师范学院华南理工大学更多>>; 相关期刊：《Science China Mathematics》《数学的实践与认识》《International Journal of Agricultural and Biological Engineering》《四川师范大学学报（自然科学版）》更多>>; 相关基金：国家自然科学基金黑龙江省教育厅科学技术研究项目中国博士后科学基金国家教育部博士点基金更多>>

基于Lorentzian模型与伪Voigt模型的谱拟合算法的准确性比较被引量：1: 《光通信技术》2024年第1期46-50,共5页莫巧灵; 为了比较基于Lorentzian模型与伪Voigt模型的2种谱拟合算法的准确性,基于布里渊散射的分布式光纤传感原理,首先比较了实测布里渊谱的Lorentzian模型和伪Voigt模型的计算结果,然后通过伪Voigt模型数值生成了具有不同形状和信噪比的布里渊...; 关键词：布里渊谱布里渊频移分布式光纤传感 Lorentzian模型伪Voigt模型

Upper bounds of Schubert polynomials: 《Science China Mathematics》2022年第6期1319-1330,共12页Neil Jiuyu Fan Peter Long Guo; supported by National Natural Science Foundation of China(Grant Nos.11971250 and 12071320);Sichuan Science and Technology Program(Grant No.2020YJ0006)。; Let w be a permutation of{1,2,...,n},and let D(w)be the Rothe diagram of w.The Schubert polynomial■w_(x)can be realized as the dual character of the flagged Weyl module associated with D(w).This implies the following...; 关键词：Schubert polynomial key polynomial flagged Weyl module upper bound Lorentzian polynomial

Canonical Connections and Algebraic Ricci Solitons of Three-dimensional Lorentzian Lie Groups被引量：1: 《Chinese Annals of Mathematics,Series B》2022年第3期443-458,共16页Yong WANG; supported by the National Natural Science Foundation of China(No.11771070); In this paper,the author computes canonical connections and Kobayashi-Nomizu connections and their curvature on three-dimensional Lorentzian Lie groups with some product structure.He defines algebraic Ricci solitons a...; 关键词：Canonical connections Kobayashi-Nomizu connections Algebraic Ricci solitons Three-dimensional Lorentzian Lie groups

Quantum mechanical solution to spectral lineshape in strongly-coupled atom-nanocavity system: 《Chinese Physics B》2022年第4期272-280,共9页Jian Zeng Zhi-Yuan Li; Project supported by the National Key Research and Development Program of China(Grant No.2018YFA0306200);the National Natural Science Foundation of China(Grant No.11974119);Guangdong Provincial Innovative and Entrepreneurial Research Team Program,China。; The strongly coupled system composed of atoms,molecules,molecule aggregates,and semiconductor quantum dots embedded within an optical microcavity/nanocavity with high quality factor and/or low modal volume has become ...; 关键词：Rabi splitting NANOCAVITY double Lorentzian lineshape

Time-varying materials in the presence of dispersion:plane-wave propagation in a Lorentzian medium with temporal discontinuity被引量：1: 《Photonics Research》2021年第9期1842-1853,共12页DIEGO M.SOLíS RAPHAEL KASTNER NADER ENGHETA; Office of Naval Research(N00014-16-1-2029)。; We study the problem of a temporal discontinuity in the permittivity of an unbounded medium with Lorentzian dispersion. More specifically, we tackle the situation in which a monochromatic plane wave forward-traveling ...; 关键词：DISCONTINUITY PLANE wave

开零锥中洛伦兹超曲面的几何性质: 《数学的实践与认识》2021年第6期257-262,共6页刘海明苗佳晶; 中央财政支持地方高校发展专项资金优秀青年人才支持项目(ZYQN2019071);黑龙江省教育厅重点项目(1354ZD008);牡丹江师范学院国家级培育项目(GP2018004)。; 开零锥中洛伦兹超曲面的研究难点在于无法利用伪外积运算从切空间中获取该超曲面的法向量.为了解决这一难题,可以借助Legendrian对偶定理的帮助.利用Legendrian对偶定理,构造了开零锥中的Lorentzian超曲面nullcone高斯像,Anti de Sitte...; 关键词：Legendrian对偶 Lorentzian超曲面开零锥斜几何

M^(n)(c)×R_(1)中具有三个不同特征值的伪平行类空超曲面被引量：2: 《兰州理工大学学报》2021年第1期155-157,共3页戴忠柱姜蕴芝初裴裴; 研究了Lorentzian乘积空间M^(n)(c)×R_(1)中伪平行类空超曲面,得到超曲面是伪平行的充要条件,证明了伪平行超曲面与H-平行超曲面等价;具有三个不同特征值的伪平行类空超曲面是常角超曲面.; 关键词：Lorentzian乘积空间类空超曲面伪平行 H-平行

机器人用精密减速器空载摩擦转矩分析与测量被引量：6: 《重庆理工大学学报（自然科学）》2020年第11期94-99,共6页徐航何元春吴耀庭施军谢桂平赵新宇; 国家自然科学基金项目(52075561);河南省高等学校重点科研项目(21A460035)。; 目前工业领域通常将精密减速器的空载摩擦转矩转速曲线做线性化处理,未能客观反映低速阶段空载摩擦转矩随转速的变化规律,为此,对精密减速器的摩擦特性及模型进行分析,以RV减速器为例,进行测量实验。结果表明:精密减速器的空载摩擦转矩...; 关键词：精密减速器空载摩擦转矩 Tustin模型 Gaussian模型 Lorentzian模型

Time-Like Conformal Homogeneous Hypersurfaces with Three Distinct Principal Curvatures被引量：3: 《Chinese Annals of Mathematics,Series B》2020年第5期679-696,共18页Yanbin LIN Ying LU Changping WANG; supported by the Principal’s Fund(No.KJ2020002);the second is supported by the National Natural Science Foundation of China(Nos.11671330 and 11871405);the third is supported by the National Natural Science Foundation of China(Nos.11831005,1196131001).; A hypersurface x(M)in Lorentzian space R41 is called conformal homogeneous,if for any two points p,q on M,there exists,a conformal transformation of R41,such that(x(M))=x(M),(x(p))=x(q).In this paper,the authors gi...; 关键词：Lorentzian metric Conformal metric Conformal space form Conformal homogeneous Time-like hypersurface

Exact analytical results for a two-level quantum system under a Lorentzian-shaped pulse field: 《Chinese Physics B》2020年第6期104-108,共5页Qiong-Tao Xie Xiao-Liang Liu; Natural Science Foundation of Hainan Province,China(Grant No.2019RC179).; We investigate a two-level quantum system driven by a Lorentzian-shaped pulse field.An analytical solution is presented in terms of the confluent Heun functions.It is shown that for specially chosen parameter conditio...; 关键词：exact solution Lorentzian-shaped pulse two-level system

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