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PERTURBATION: 作品数：943被引量：1252H指数：13; 导出分析报告; 相关领域：理学更多>>; 相关作者：杨超吴志刚张志森王琦陈尔余更多>>; 相关机构：福建师范大学北京理工大学北京航空航天大学浙江大学更多>>; 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中国博士后科学基金国家教育部博士点基金更多>>

THE STABILITY OF THE DELTA WAVE TO PRESSURELESS EULER EQUATIONS WITH VISCOUS AND FLUX PERTURBATIONS: 《Acta Mathematica Scientia》2022年第4期1519-1535,共17页Sijie LIU Wancheng SHENG; Supported by NSFC(12171305)。; This paper is concerned with the pressureless Euler equations with viscous and flux perturbations.The existence of Riemann solutions to the pressureless Euler equations with viscous and flux perturbations is obtained....; 关键词：Pressureless Euler equations stability of the delta wave viscous perturbation and flux perturbation

A FRACTIONAL CRITICAL PROBLEM WITH SHIFTING SUBCRITICAL PERTURBATION: 《Acta Mathematica Scientia》2022年第3期1113-1124,共12页Qi LI Chang-Lin XIANG; supported by the excellent doctorial dissertation cultivation grant(2018YBZZ067)from Central China Normal University;financially supported by the National Natural Science Foundation of China(11701045);the Yangtze Youth Fund(2016cqn56)。; In this paper,we consider a class of fractional problem with subcritical perturbation on a bounded domain as follows:(P_(k)){(−△)^(s)u = g(x)[(u − k)+]^(q−1) +u^(2^(∗)_(s)−1), x ∈Ω ,u > 0, x∈Ω ,u = 0, x ∈Ω R^(...; 关键词：Subcritical perturbation nontrivial solutions CONCENTRATION

A STABILITY PROBLEM FOR THE 3D MAGNETOHYDRODYNAMIC EQUATIONS NEAR EQUILIBRIUM被引量：2: 《Acta Mathematica Scientia》2021年第4期1107-1118,共12页Xueli KE Baoquan YUAN Yaomin XIAO; The second author is supported by the National Natural Science Foundation of China(11471103).; This paper is concerned with a stability problem on perturbations near a physically important steady state solution of the 3D MHD system.We obtain three major results.The first assesses the existence of global solutio...; 关键词：Background magnetic field MHD equations with perturbation STABILITY decay rate

THE PERTURBATION PROBLEM OF AN ELLIPTIC SYSTEM WITH SOBOLEV CRITICAL GROWTH: 《Acta Mathematica Scientia》2020年第5期1391-1404,共14页Qi LI; supported by the excellent doctorial dissertation cultivation grant(2018YBZZ067 and 2019YBZZ057)from Central China Normal University.; In this paper,we study the following perturbation problem with Sobolev critical exponen t:{-Δu=(1+εK(x))u^2*-1+α/2*u^a-1v^3+εh(x)u^pP,x∈R^N,-Δu=(1+εQ(x))v^2*-1+β/2*u^B-1+εl(x)u^q,x∈R^N,u>0,v>0,x∈R^N where 0...; 关键词：perturbation argument finite dimensional reduction method critical exponent

NONLINEAR STABILITY OF VISCOUS SHOCK WAVES FOR ONE-DIMENSIONAL NONISENTROPIC COMPRESSIBLE NAVIER–STOKES EQUATIONS WITH A CLASS OF LARGE INITIAL PERTURBATION被引量：1: 《Acta Mathematica Scientia》2018年第3期973-1000,共28页Shaojun TANG Lan ZHANG School of Mathematics and Statistics Wuhan University; supported by the NSFC(1671309); We study the nonlinear stability of viscous shock waves for the Cauchy problem of one-dimensional nonisentropic compressible Navier–Stokes equations for a viscous and heat conducting ideal polytropic gas. The viscous...; 关键词：One-dimensional nonisentropic compressible Navier–Stokes equations viscous shock waves nonlinear stability large initial perturbation

A NEW PERTURBATION THEOREM FOR MOORE-PENROSE METRIC GENERALIZED INVERSE OF BOUNDED LINEAR OPERATORS IN BANACH SPACES被引量：3: 《Acta Mathematica Scientia》2017年第6期1619-1631,共13页王紫王玉文; Supported by the Nature Science Foundation of China(11471091 and 11401143); In this paper, we investigate a new perturbation theorem for the Moore-Penrose metric generalized inverses of a bounded linear operator in Banach space. The main tool in this paper is ＂the generalized Neumann lemma＂...; 关键词：Banach space bounded linear operator metric projection generalized inverse perturbation analysis Moore-Penrose quasi-additive

MULTIPLICATIVE PERTURBATIONS OF LOCAL α-TIMES INTEGRATED C-SEMIGROUPS被引量：1: 《Acta Mathematica Scientia》2017年第3期877-888,共12页Nai-Sher YEH Chung-Cheng KUO; We establish some left and right multiplicative perturbations of a local α-timesintegrated C-semigroup S（·） on a complex Banach space X with non-densely defined genera- tor, which can be applied to obtain some add...; 关键词：Integrated C-semigroup generator abstract Cauchy problem PERTURBATION

SOME RESULTS ON CONTROLLED FRAMES IN HILBERT SPACES被引量：2: 《Acta Mathematica Scientia》2016年第3期655-665,共11页Kamran MUSAZADEH Hassan KHANDANI; Supported by IAU-Mahabad branch(51663931105001); We use two appropriate bounded invertible operators to define a controlled frame with optimal frame bounds. We characterize those operators that produces Parseval controlled frames also we state a way to construct nea...; 关键词：FRAMES Parseval frames dual frames controlled frames reconstruction formula PERTURBATION

ON A CHARACTERIZATION OF THE S-ESSENTIAL SPECTRA OF THE SUM AND THE PRODUCT OF TWO OPERATORS AND APPLICATION TO A TRANSPORT OPERATOR: 《Acta Mathematica Scientia》2015年第6期1285-1304,共20页Salma CHARFI Sassia RAHALI; In this paper, we develop some operational calculus inspired from the Fredholm operator theory to investigate the S-essential spectra of the sum and the product of two operators acting on a Banach space. Furthermore, ...; 关键词：Fredholm operator Fredholm perturbation S-essential spectra transport operator

ADDITIVE PERTURBATIONS OF LOCAL C-SEMIGROUPS被引量：1: 《Acta Mathematica Scientia》2015年第6期1566-1576,共11页Chung-Cheng KUO; supported by the National Science Council of Taiwan; In this paper, we apply the contraction mapping theorem to establish some bounded and unbounded additive perturbation theorems concerning local C-semigroups. Some growth conditions of perturbations of local C-semigrou...; 关键词：local C-semigroup generator abstract Cauchy problem PERTURBATION

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