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EIGENVALUE: 作品数：507被引量：554H指数：11; 导出分析报告; 相关领域：理学更多>>; 相关作者：毛莎莎刘芳王爽焦李成张爽更多>>; 相关机构：中国科学技术大学广西大学清华大学西安电子科技大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金中国博士后科学基金更多>>

Some Eigenvalue Properties of Third-order Boundary Value Problems with Distributional Potentials: 《Acta Mathematicae Applicatae Sinica》2025年第1期179-199,共21页Hai-yan ZHANG Ji-jun AO; supported by National Natural Science Foundation of China(No.12261066);the Natural Science Foundation of Inner Mongolia(No.2021MS01020 and No.2023LHMS01015).; Several eigenvalue properties of the third-order boundary value problems with distributional potentials are investigated.Firstly,we prove that the operators associated with the problems are self-adjoint and the corres...; 关键词：third-order boundary value problems distributional potentials quasi-derivatives EIGENVALUES

LOG-CONCAVITY OF THE FIRST DIRICHLET EIGENFUNCTION OF SOME ELLIPTIC DIFFERENTIAL OPERATORS AND CONVEXITY INEQUALITIES FOR THE RELEVANT EIGENVALUE: 《Acta Mathematica Scientia》2025年第1期143-152,共10页Andrea COLESANTI; supported by the project Disuguaglianze analitiche e geometriche,funded by the Gruppo per Analisi Matematica la Probabilitàe le loro Applicazioni.; Given an open bounded subset Ω of ℝ^(n) we consider the eigenvalue problem{Δu-(■u,■V)=-λvu,u>0inΩ,u=0 onδΩ,where V is a given function defined inΩandλV is the relevant eigenvalue.We determine sufficient cond...; 关键词：EIGENVALUE LOG-CONCAVITY elliptic operator Brunn-Minkowski inequality convex body

BANACH ALGEBRA STRUCTURE IN DERIVATIVE HARDY SPACES: 《数学杂志》2024年第6期485-493,共9页ZHANG Zhao-de LIU Jun-ming; Supported by National Natural Science Foundation of China(11801094).; In this paper,we consider the algebraic structure of derivative Hardy Spaces.By using the method of[6,12,15],we get the Duhamel product forming Banach algebra in derivative Hardy Spaces,and invertibility criterion,and...; 关键词：Duhamel product banach algebra extended eigenvalue

Escobar’s Conjecture on a Sharp Lower Bound for the First Nonzero Steklov Eigenvalue: 《Peking Mathematical Journal》2024年第2期759-778,共20页Chao Xia Changwei Xiong; supported by NSFC(Grant nos.11871406,12271449);supported by Australian Laureate Fellowship FL150100126 of the Australian Research Council;National Key R and D Program of China 2021YFA1001800 and NSFC(Grant no.12171334).; It was conjectured by Escobar(J Funct Anal 165:101–116,1999)that for an ndimensional(n≥3)smooth compact Riemannian manifold with boundary,which has nonnegative Ricci curvature and boundary principal curvatures bound...; 关键词：Stekloveigenvalue Laplacian eigenvalue Sharp bound Nonnegative sectional curvature

A salient feature establishment tactic for cassava disease recognition: 《Artificial Intelligence in Agriculture》2024年第4期115-132,共18页Jjayu Zhang Baohua Zhang Zixuan Chen Innocent Nyalala Kunjie Chen Junfeng Gao; Accurate classification of cassava disease,particularly in field scenarios,relies on object semantic localization to identify and precisely locate specific objects within an image based on their semantic meaning,there...; 关键词：Cassava disease classification Irrelevant feature depression Semantic foreground representation Salient semantic features Negative eigenvalue maintain

Temporal stability analysis and thermal performance of non-Newtonian nanofluid over a shrinking wedge: 《Propulsion and Power Research》2024年第4期586-596,共11页Ahmed Zeeshan Muhammad Imran Khan Aaqib Majeed Mohammed Sh.Alhodaly; The authors use a temporal stability analysis to examine the hydrodynamics performance of flow response quantities to investigate the impacts of pertained parameters on Casson nanofluid over a porous shrinking wedge.T...; 关键词：Wedge flow Casson nanofluid Thermal radiation Stability test EIGENVALUE

Rapid Parameter-Optimizing Strategy for Plug-and-Play Devices in DC Distribution Systems under the Background of Digital Transformation: 《Energy Engineering》2024年第12期3899-3927,共29页Zhi Li Yufei Zhao Yueming Ji Hanwen Gu Zaibin Jiao; supported by State Grid Information and Telecommunication Group Scientific and Technological Innovation Project“Research on Power Digital Space Technology System and Key Technologies”(Program No.SGIT0000XMJS2310456).; By integrating advanced digital technologies such as cloud computing and the Internet of Things in sensor measurement,information communication,and other fields,the digital DC distribution network can efficiently and ...; 关键词：DC distribution system digital grid small-signal stability eigenvalue parametric sensitivity particle swarm optimization parameter boundary calculation parameter tuning

Small-signal Stability Constrained Optimal Power Flow Considering Eigenvalue Distribution被引量：1: 《Journal of Modern Power Systems and Clean Energy》2024年第4期1052-1062,共11页Zheng Huang Kewen Wang Yi Wang Jing Han Jun Liang; supported by the National Natural Science Foundation of China(No.62203395);the Postdoctoral Research Project of Henan Province(No.202101011);the Key R&D and Promotion Project of Henan Province(No.222102220041).; In the existing small-signal stability constrained optimal power flow(SSSC-OPF)algorithms,only the rightmost eigenvalue or eigenvalues that do not satisfy a given threshold,e.g.,damping ratio threshold and real-part t...; 关键词：Damping ratio EIGENVALUE optimal power flow quasi-Newton approach sensitivity small-signal stability

On Integral Graphs which Belong to the Class (αKa,a,a UβKb,b,b): 《Journal of Mathematical Research with Applications》2024年第4期444-464,共21页Mirko LEPOVIC; Let G be a simple graph and let G denote its complement.We say that G is integral if its spectrum consists entirely of integers.In this work we establish a characterization of integral graphs which belong to the clas...; 关键词：GRAPH EIGENVALUE Diophantine equation

The Complete Classification of Graphs whose Second Largest Eigenvalue of the Eccentricity Matrix is Less Than 1: 《Acta Mathematica Sinica,English Series》2024年第7期1741-1766,共26页Jian Feng WANG Xing Yu LEI Shu Chao LI Zoran STANIC; supported by the Special Fund for Taishan Scholars Project;the IC Program of Shandong Institutions of Higher Learning For Youth Innovative Talents;supported by the National Natural Science Foundation of China (Grant No. 12371353);supported by the Science Fund of the Republic of Serbia grant number 7749676:Spectrally Constrained Signed Graphs with Applications in Coding Theory and Control Theory–SCSG-ctct; The eccentricity matrix of a graph is obtained from the distance matrix by keeping the entries that are largest in their row or column,and replacing the remaining entries by zero.This matrix can be interpreted as an o...; 关键词：Eccentricity matrix EIGENVALUE diameter principal submatrix forbidden subgraph

EIGENVALUE