ALGEBRAIC

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Numerical simulation of 3D supersonic asymmetric truncated nozzle based on k-kL algebraic stress model
《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2025年第3期238-251,共14页Gang WANG Shuai ZHANG Jifa ZHANG Yao ZHENG 
supported by the Zhejiang Provincial Key Research and Development Program of China(No.2020C01020).
The nozzle is a critical component responsible for generating most of the net thrust in a scramjet engine.The quality of its design directly affects the performance of the entire propulsion system.However,most turbule...
关键词：Supersonic nozzle Turbulence model Numerical simulation Performance analysis 
Mapping Spatial Distributions within Pseudoscalar Mesons
《Chinese Physics Letters》2025年第2期1-12,共12页Khepani Raya Adnan Bashir Jose Rodriguez-Quintero 
supported by the Spanish MICINN grant PID2022-140440NB-C22;the regional Andalusian project P18-FR-5057;the Coordinación de la Investigación Científica of the Universidad Michoacana de San Nicolás de Hidalgo,Morelia,Mexico,Grant No.4.10;the Consejo Nacional de Humanidades,Ciencias y Tecnologías,Mexico,project CBF2023-2024-3544;the Beatriz-Galindo support during his current scientific stay at the University of Huelva,Huelva,Spain;the Chair d'excellence within the program d'Alembert supporting a visiting professorship in the Universitéde Paris-Saclay,France。
Several aspects of the internal structure of pseudoscalar mesons,accessible through generalized parton distri-butions in their zero-skewness limit,are examined.These include electromagnetic and gravitational form fact...
关键词：DYNAMICS SCALAR ALGEBRAIC 
Accurate quantification of the algebraic,multiplicative algebraic,and simultaneous iterative reconstruction techniques in ionosphere rebuilding based on the TIEGCM assessment
《Earth and Planetary Physics》2025年第1期117-126,共10页Ao Qi HaiBing Ruan 
supported by the National Key R&D Program of China (Grant No. 2022YFF0503702);the National Natural Science Foundation of China (Grant No. 42074186)
The algebraic reconstruction technique(ART),multiplicative algebraic reconstruction technique(MART),and simultaneous iterative reconstruction technique(SIRT)are computational methodologies extensively utilized within ...
关键词：computerized ionospheric tomography International Reference Ionosphere model Thermosphere Ionosphere Electrodynamics General Circulation model IONOSPHERE 
LOW-REGULARITY SOLUTIONS TO FOKKER-PLANCK-TYPE SYSTEMS IN THE WHOLE SPACE
《Acta Mathematica Scientia》2024年第6期2361-2390,共30页Lihua TAN Yingzhe FAN 
supported by the National Natural Science Foundation of China(11801285,12326337)。
In this manuscript,we consider two kinds of the Fokker-Planck-type systems in the whole space.The first part involves proving the global existence and the algebraic time decay rates of the mild solutions to the Fokker...
关键词：global existence algebraic time decay rates exponential time decay rates the whole space low regularity space 
Shapes of Regular Curves Defined by Hyperbolic Functions
《Wuhan University Journal of Natural Sciences》2024年第6期495-498,共4页ZHNAG Yanfang JIN Chenxiang FAN Changhong 
Supported by the Curriculum Ideological and Political Teaching Research Project of Huzhou University (JGSZ202323)。
This article discusses the shapes of a class of regular curves defined by hyperbolic functions.We first make a preliminary judgment using its torsion and then get more precise descriptions using its curvature and alge...
关键词：regular curves TORSION CURVATURE algebraic invariants 
Distributed Minimum-Energy Containment Control of Continuous-Time Multi-Agent Systems by Inverse Optimal Control
《IEEE/CAA Journal of Automatica Sinica》2024年第6期1533-1535,共3页Fei Yan Xiangbiao Liu Tao Feng 
supported by the National Nat-ural Science Foundation of China(61873215,62103342);the Natural Science Foundation of Sichuan Province(2022NSFSC0470,2022NSFSC0892).
Dear Editor,This letter focuses on the distributed optimal containment control of continuous-time multi-agent systems(CTMASs)with respect to the minimum-energy performance index over fixed topology.To achieve this,we ...
关键词：optimal INFINITY ALGEBRAIC 
Rational Solutions of First Order Algebraic Ordinary Differential Equations
《Journal of Systems Science & Complexity》2024年第2期567-580,共14页FENG Shuang SHEN Liyong 
supported by Beijing Natural Science Foundation under Grant No.Z190004;the National Key Research and Development Project under Grant No.2020YFA0713703;the Fundamental Research Funds for the Central Universities.
Let f(t,y,y')=∑ _(i=0)^(n )a_(i)(t,y)y'^(i)=0 be an irreducible first order ordinary differential equation with polynomial coefficients.Eremenko in 1998 proved that there exists a constant C such that every rational ...
关键词：Degree bound first order AODE HEIGHT rational solution 
F_(p) as a Discrete Metric Space
《Algebra Colloquium》2024年第1期165-180,共16页Zezhou Zhang 
supported by NSFC Grant No.12101051.
We define a metric that makes the algebraic closure of a finite field F_(p) into a UDBG(uniformly discrete with bounded geometry)metric space.This metric stems from algebraic properties of F_(p).From this perspective,...
关键词：algebraic closure of finite field discrete metric space non-expanding Falner 
Algebraic Properties of Powers of Edge Ideals of Vertex-Weighted Oriented Cycles
《Algebra Colloquium》2023年第4期649-666,共18页Hong Wang Guangjun Zhu Li Xu 
This research is supported by the Natural Science Foundation of Jiangsu Province(BK20221353);the foundation of the Priority Academic Program Development of Jiangsu Higher Education Institutions.Finally,the authors would like to thank the referees who read the manuscript carefully and gave very helpful comments,which improved the paper both in mathematics and presentation.
Let t be any positive integer and I(C_(n)) the edge ideal of a vertex-weighted oriented n-cycle graph C_(n).We provide explicit formulas for the regularity and depth of I(C_(n))^(t).In particular,we find that the regu...
关键词：depth REGULARITY powers of an ideal vertex-weighted oriented cycles 
Algebraic form and analysis of SIR epidemic dynamics over probabilistic dynamic networks
《Control Theory and Technology》2023年第4期602-611,共10页Hongxing Yuan Zengqiang Chen Zhipeng Zhang Rui Zhu Zhongxin Liu 
supported by the National Natural Science Foundation of China(Nos.61973175,62203328);the Tianjin Natural Science Foundation(Nos.20JCYBJC01060,21JCQNJC00840);the General Terminal IC Interdisciplinary Science Center of Nankai University.
The outbreak of corona virus disease 2019 has profoundly affected people’s way of life.It is increasingly necessary to investigate epidemics over social networks.This paper studies susceptible-infected-removed(SIR)ep...
关键词：SIR epidemic Probabilistic dynamic networks Final spreading equilibria Semi-tensor product of matrices Algebraic form 
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