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MINIMIZERS OF L^(2)-SUBCRITICAL VARIATIONAL PROBLEMS WITH SPATIALLY DECAYING NONLINEARITIES IN BOUNDED DOMAINS
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作者 陈彬 高永帅 +1 位作者 郭玉劲 吴越 《Acta Mathematica Scientia》 SCIE CSCD 2024年第3期984-996,共13页
This paper is concerned with the minimizers of L^(2)-subcritical constraint variar tional problems with spatially decaying nonlinearities in a bounded domain Ω of R~N(N≥1).We prove that the problem admits minimizers... This paper is concerned with the minimizers of L^(2)-subcritical constraint variar tional problems with spatially decaying nonlinearities in a bounded domain Ω of R~N(N≥1).We prove that the problem admits minimizers for any M> 0.Moreover,the limiting behavior of minimizers as M→∞ is also analyzed rigorously. 展开更多
关键词 decaying nonlinearity L~2-subcritical MINIMIZERS bounded domains mass concentration
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INCOMPRESSIBLE LIMIT OF THE NON-ISENTROPIC MAGNETOHYDRODYNAMIC EQUATIONS IN BOUNDED DOMAINS 被引量:2
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作者 王术 徐自立 《Acta Mathematica Scientia》 SCIE CSCD 2015年第3期719-745,共27页
The incompressible limit of the non-isentropic magnetohydrodynamic equations with zero thermal coefficient, in a two dimensional bounded domain with the Dirichlet condi- tion for velocity and perfectly conducting boun... The incompressible limit of the non-isentropic magnetohydrodynamic equations with zero thermal coefficient, in a two dimensional bounded domain with the Dirichlet condi- tion for velocity and perfectly conducting boundary condition for magnetic field, is rigorously justified. 展开更多
关键词 Low Mach number limit non-isentropic magnetohydrodynamic equations bounded domain
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Multilinear Fractional Integral Operators on Morrey Spaces with Variable Exponent on Bounded Domain 被引量:1
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作者 Wang Min Qu Meng +1 位作者 Shu Li-sheng Ji You-qing 《Communications in Mathematical Research》 CSCD 2015年第3期253-260,共8页
We prove the boundedness of multilinear fractional integral operators onproducts of the variable exponent Morrey spaces on bounded domain.
关键词 multilinear fractional integral operator variable exponent Morreyspace bounded domain
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Pullback attractor of 2D non-autonomous g-Navier-Stokes equations on some bounded domains
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作者 姜金平 侯延仁 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2010年第6期697-708,共12页
The existence of the pullback attractor for the 2D non-autonomous g-Navier- Stokes equations on some bounded domains is investigated under the general assumptions of pullback asymptotic compactness. A new method to pr... The existence of the pullback attractor for the 2D non-autonomous g-Navier- Stokes equations on some bounded domains is investigated under the general assumptions of pullback asymptotic compactness. A new method to prove the existence of the pullback attractor for the 2D g-Navier-Stokes eauations is given. 展开更多
关键词 pullback attractor g-Navier-Stokes equation pullback asymptotic compactness pullback condition bounded domain
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The Integral Representations and Their Applications on the Analytic Varieties of Bounded Domains in Stein Manifolds
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作者 CHEN Shu-jin 《Chinese Quarterly Journal of Mathematics》 2021年第4期331-355,共25页
In this paper,we first obtain a unified integral representation on the analytic varieties of the general bounded domain in Stein manifolds(the two types bounded domains in[3]are regarded as its special cases).Secondly... In this paper,we first obtain a unified integral representation on the analytic varieties of the general bounded domain in Stein manifolds(the two types bounded domains in[3]are regarded as its special cases).Secondly we get the integral formulas of the solution of∂-equation.And we use a new and unique method to give a uniform estimate of the solution of∂-equation,which is different from Henkin's method. 展开更多
关键词 ∂-equation Uniform estimation General bounded domain Stein manifold Analytic varieties Integral representation
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Global Existence of Solutions for Baer-Nunziato Two-Phase Flow Model in a Bounded Domain
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作者 Wenhui Kou 《Open Journal of Applied Sciences》 2022年第4期631-649,共19页
In this paper, we study the global existence and uniqueness of strong solutions for the Baer-Nunziato two-phase flow model in a bounded domain with a no-slip boundary. The global existence and uniqueness of strong sol... In this paper, we study the global existence and uniqueness of strong solutions for the Baer-Nunziato two-phase flow model in a bounded domain with a no-slip boundary. The global existence and uniqueness of strong solutions are obtained when the initial value is near the equilibrium state in H<sup>2</sup> (&#937;). Furthermore, the exponential convergence rates of the pressure and velocity are also proved by delicate energy methods. 展开更多
关键词 Two-Phase Model bounded domain Global Existence Energy Method
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On the inviscid limit of the compressible Navier-Stokes equations near Onsager's regularity in bounded domains
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作者 Robin Ming Chen Zhilei Liang +1 位作者 Dehua Wang Runzhang Xu 《Science China Mathematics》 SCIE CSCD 2024年第1期1-22,共22页
The viscous dissipation limit of weak solutions is considered for the Navier-Stokes equations of compressible isentropic flows confined in a bounded domain.We establish a Kato-type criterion for the validity of the in... The viscous dissipation limit of weak solutions is considered for the Navier-Stokes equations of compressible isentropic flows confined in a bounded domain.We establish a Kato-type criterion for the validity of the inviscid limit for the weak solutions of the Navier-Stokes equations in a function space with the regularity index close to Onsager’s critical threshold.In particular,we prove that under such a regularity assumption,if the viscous energy dissipation rate vanishes in a boundary layer of thickness in the order of the viscosity,then the weak solutions of the Navier-Stokes equations converge to a weak admissible solution of the Euler equations.Our approach is based on the commutator estimates and a subtle foliation technique near the boundary of the domain. 展开更多
关键词 inviscid limit Navier-Stokes equations Euler equations weak solutions bounded domain Katotype criterion Onsager’s regularity
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The low Mach number limit of non-isentropic magnetohydrodynamic equations with large temperature variations in bounded domains
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作者 Min Liang Yaobin Ou 《Science China Mathematics》 SCIE CSCD 2024年第4期787-818,共32页
This paper verifies the low Mach number limit of the non-isentropic compressible magnetohydrodynamic(MHD)equations with or without the magnetic diffusion in a three-dimensional bounded domain when the temperature vari... This paper verifies the low Mach number limit of the non-isentropic compressible magnetohydrodynamic(MHD)equations with or without the magnetic diffusion in a three-dimensional bounded domain when the temperature variation is large but finite.The uniform estimates of strong solutions are established in a short time interval independent of the Mach number,provided that the slip boundary condition for the velocity and the Neumann boundary condition for the temperature are imposed and the initial data is well-prepared. 展开更多
关键词 low Mach number limit non-isentropic compressible magnetohydrodynamic equations large temperature variations bounded domains
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Regularity Criteria of the Magnetohydrodynamic Equations in a Bounded Domain
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作者 FAN Jishan JU Qiangchang 《Journal of Partial Differential Equations》 CSCD 2023年第3期321-330,共10页
Regularity criteria in terms of bounds for the pressure are derived for the 3D MHD equations in a bounded domain with slip boundary conditions.A list of three regularity criteria is shown.
关键词 Magnetohydrodynamic equations regularity criterion bounded domain.
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Eigenvalues of the Negative Laplacian for Simply Connected Bounded Domains
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作者 E.M.E.Zayed (Mathematics Department,Faculty of Science,Zagazig University,Zagazig,Egypt) 《Acta Mathematica Sinica,English Series》 SCIE CSCD 1997年第3期337-346,共10页
This paper is devoted to asymptotic formulae for functions related with the spectrum of the negative Laplacian in two and three dimensional bounded simply connected domains with impedance boundary conditions,where the... This paper is devoted to asymptotic formulae for functions related with the spectrum of the negative Laplacian in two and three dimensional bounded simply connected domains with impedance boundary conditions,where the impedances are assumed to be discontinuous functions. Moreover,asymptotic expressions for the difference of eigenvalues related to the impedance problems with different impedances are derived.Further results may be obtained. 展开更多
关键词 Inverse problem Arbitrary bounded domains Negative Laplacian EIGENVALUES Spectral function
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Global dynamics of a nonlocal population model with age structure in a bounded domain:A non-monotone case
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作者 YUAN YueDing GUO ZhiMing 《Science China Mathematics》 SCIE CSCD 2015年第10期2145-2166,共22页
We study the global dynamics of a nonlocal population model with age structure in a bounded domain. We mainly concern with the case where the birth rate decreases as the mature population size become large. The analys... We study the global dynamics of a nonlocal population model with age structure in a bounded domain. We mainly concern with the case where the birth rate decreases as the mature population size become large. The analysis is rather subtle and it is inadequate to apply the powerful theory of monotone dynamical systems. By using the method of super-sub solutions, combined with the careful analysis of the kernel function in the nonlocal term, we prove nonexistence, existence and uniqueness of positive steady states of the model.Moreover, due to the mature individuals do not diffuse, the solution semiflow to the model is not compact. To overcome the difficulty of non-compactness in describing the global asymptotic stability of the unique positive steady state, we first establish an appropriate comparison principle. With the help of the comparison principle,we can employ the theory of dissipative systems to obtain the global asymptotic stability of the unique positive steady state. The main results are illustrated with the nonlocal Nicholson's blowflies equation and the nonlocal Mackey-Glass equation. 展开更多
关键词 nonlocal and delay model existence and uniqueness of positive steady states global asymptotic stability bounded domain
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The Static Solution for the Layered Piezoelectric Bounded Domain with Side Face Load by the Modified SBFEM
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作者 Shan Lu Jun Liu +2 位作者 Gao Lin Zihua Zhang Pengchong Zhang 《Advances in Applied Mathematics and Mechanics》 SCIE 2018年第1期209-241,共33页
The static response of two-dimensional horizontal layered piezoelectric bounded domain with side face load was investigated.In this paper,the modified scaled boundary finite element method(SBFEM)is provided as an effe... The static response of two-dimensional horizontal layered piezoelectric bounded domain with side face load was investigated.In this paper,the modified scaled boundary finite element method(SBFEM)is provided as an effective semi analytical methodology.The method is used to solve the static problem for the layered piezoelectric bounded domain.The scaling line definition extends the SBFEM to be more suitable for analyzing the multilayered piezoelectric bounded domain.It avoids the limitations of original SBFEM in modeling the horizontal layered bounded domain.The modified SBFEM governing equation with piezoelectric medium is derived by introducing Duality variable in the Hamilton system.This derivation technology makes the progress be concise.The novel displacement and electric governing equations of the modified SBFEM is given together by the first time.The node forces can be expressed as power exponent function with radial coordinate by introducing the auxiliary variable and using the eigenvalue decomposition.The novel modified SBFEM solution of layered bounded domain with piezoelectric medium is solved.The new power expansion function of layered piezoelectric medium with side face load is proposed.This technology significantly extends the application range of modified SBFEM.The novel treatment of side face load for the layered piezoelectric bounded domain is proposed.Numerical studies are conducted to demonstrate the accuracy of proposed technique in handling with the static problem of layered bounded domain with piezoelectric medium for side face load.The influence of the side face load type and depth are discussed in detail. 展开更多
关键词 Modified scaled boundary finite element method piezoelectric medium side face load layered bounded domain
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THE EQUIVALENT CHARACTERIZATION OF F(p,q,s)SPACE ON BOUNDED SYMMETRIC DOMAINS OF Cn 被引量:4
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作者 黎深莲 张学军 徐思 《Acta Mathematica Scientia》 SCIE CSCD 2017年第6期1791-1802,共12页
LetΩ be a bounded symmetric domain in Cn. The purpose of this article is to define and characterize the general function space F(p, q, s) on Ω. Characterizing functions in the F(p, q, s) space is a work of consi... LetΩ be a bounded symmetric domain in Cn. The purpose of this article is to define and characterize the general function space F(p, q, s) on Ω. Characterizing functions in the F(p, q, s) space is a work of considerable interest nowadays. In this article, the authors give several equivalent descriptions of the functions in the F(p, q, s) space on Ω in terms of fractional differential operators. At the same time, the authors give the relationship between F(p, q, s) space and Bloch type space on Ω too. 展开更多
关键词 F(p q s) space equivalent description bounded symmetric domain
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ON THE ASYMPTOTIC BEHAVIOR OF HOLOMORPHIC ISOMETRIES OF THE POINCAR DISK INTO BOUNDED SYMMETRIC DOMAINS 被引量:1
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作者 Ngaiming Mok 《Acta Mathematica Scientia》 SCIE CSCD 2009年第4期881-902,共22页
In this article we bounded symmetric domains study holomorphic isometries of the Poincare disk into Earlier we solved the problem of analytic continuation of germs of holomorphic maps between bounded domains which a... In this article we bounded symmetric domains study holomorphic isometries of the Poincare disk into Earlier we solved the problem of analytic continuation of germs of holomorphic maps between bounded domains which are isometrics up to normalizing constants with respect to the Bergman metric, showing in particular that the graph 170 of any germ of holomorphic isometry of the Poincar6 disk A into an irreducible bounded symmetric domain Ω belong to C^N in its Harish-Chandra realization must extend to an affinealgebraic subvariety V belong to C × C^N = C^N+1, and that the irreducible component of V ∩ (△ × Ω) containing V0 is the graph of a proper holomorphic isometric embedding F : A→ Ω. In this article we study holomorphie isometric embeddings which are asymptotically geodesic at a general boundary point b ∈ δ△. Starting with the structural equation for holomorphic isometrics arising from the Gauss equation, we obtain by covariant differentiation an identity relating certain holomorphic bisectional curvatures to the boundary behavior of the second fundamental form σ of the holomorphie isometric embedding. Using the nonpositivity of holomorphic bisectional curvatures on a bounded symmetric domain, we prove that ‖σ‖ must vanish at a general boundary point either to the order 1 or to the order 1/2, called a holomorphie isometry of the first resp. second kind. We deal with special cases of non-standard holomorphic isometric embeddings of such maps, showing that they must be asymptotically totally geodesic at a general boundary point and in fact of the first kind whenever the target domain is a Cartesian product of complex unit balls. We also study the boundary behavior of an example of holomorphic isometric embedding from the Poincare disk into a Siegel upper half-plane by an explicit determination of the boundary behavior of holomorphic sectional curvatures in the directions tangent to the embedded Poincare disk, showing that the map is indeed asymptotically totally geodesic at a general boundary point and of the first kind. For the metric computation we make use of formulas for symplectic geometry on Siegel upper half-planes. 展开更多
关键词 holomorphic isometry Bergman metric Poincar DISK analytic continuation bounded symmetric domain asymptotic geodesy second fundamentalform Siegel upper half-plane symplectic geometry
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A NEW ROPER-SUFFRIDGE EXTENSION OPERATOR ON BOUNDED COMPLETE REINHARDT DOMAINS 被引量:2
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作者 刘浩 夏红川 《Acta Mathematica Scientia》 SCIE CSCD 2014年第6期1835-1844,共10页
In this paper, we construct a new Roper-Suffridge extension operator Φn^r,β1,,βn(f)(z) = F(z) = ((rf(z1/r)/z1)^β1z1,(rf(z1/r)/z1)^β2z2,...,(rf(z1/r)/z1)^βnzn)',where f is a normalized locall... In this paper, we construct a new Roper-Suffridge extension operator Φn^r,β1,,βn(f)(z) = F(z) = ((rf(z1/r)/z1)^β1z1,(rf(z1/r)/z1)^β2z2,...,(rf(z1/r)/z1)^βnzn)',where f is a normalized locally biholomorphic function on the unit disc D, r = sup{|z1| : z =(z1, ···, zn) ∈Ω}, β1∈ [0, 1], 0 ≤βk≤β1, k = 2, ···, n, then we prove it can preserve the property of spirallikeness of type β, almost starlikeness of order α and starlikeness of orderα on bounded complete Reinhardt domain Ω, respectively. 展开更多
关键词 Roper-Suffridge operator biholomorphic mappings bounded complete Reinhardt domains
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α-CARLESON MEASURE AND BLOCH FUNCTIONS ON BOUNDED SYMMETRIC DOMAINS OF C^n
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作者 欧阳才衡 《Acta Mathematica Scientia》 SCIE CSCD 1995年第4期385-393,共9页
In this paper we defineα-Carleson measure in the Bergman metric on bounded symmetric domains. Some necessary and sufficient conditions about it and Bloch functions on the domains are given.
关键词 Carleson measure Bloch functions bounded symmetric domains.
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The Covering Theorems for Normalized Holomorphic Mappings on Bounded Starlike Circular Domains in C^n
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作者 LIUTai-shun FENGShu-xia 《Chinese Quarterly Journal of Mathematics》 CSCD 2004年第1期1-5,共5页
In this paper, we will investigate convex domains and starlike domains which contain the image set of normalized holomorphic mappings on bounded starlike circular domains in Cn.
关键词 covering theorem bounded starlike circular domain starlike mapping convex mapping
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Function Theory of a Class of Bounded Reinhardt Domains
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作者 LI Xian 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2006年第1期115-123,共9页
In this paper, we consider a class of bounded Reinhardt domains Dα(m, n1,…,nm). The Bergman kernel function K(z,z^), the Bergman metric matrix T(z,z^), the Cauchy-Szegoe kernel function S(z,ζ^) are obtained... In this paper, we consider a class of bounded Reinhardt domains Dα(m, n1,…,nm). The Bergman kernel function K(z,z^), the Bergman metric matrix T(z,z^), the Cauchy-Szegoe kernel function S(z,ζ^) are obtained. Then we prove that the formal Poisson kernel function is not a Poisson kernel function. At last, we prove that Dα is a quasiconvex domain and Dα is a stronger quasiconvex domain if and only if Dα is a hypersphere. 展开更多
关键词 bounded Reinhardt domain Cauchy-Szegoe kernel
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Weighted Bergman Spaces on Bounded Symmetric Domains
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作者 王雄亮 刘太顺 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2008年第1期36-44,共9页
On bounded symmetric domain Ω of C^n, we investigate the properties of functions in weighted Bergman spaces A^P(Ω,dvs) for 0 〈 p ≤ +∞ and -1 〈 s 〈 4-∞. Based on the estimate of Bergman kernel, we obtain som... On bounded symmetric domain Ω of C^n, we investigate the properties of functions in weighted Bergman spaces A^P(Ω,dvs) for 0 〈 p ≤ +∞ and -1 〈 s 〈 4-∞. Based on the estimate of Bergman kernel, we obtain some characterizations of functions in A^P(Ω, dvs) in terms of a class of linear operators D^αB. Making use of these characterizations, we extend A^P(Ω,dvs) to the weighted Bergman spaces Aα^p,B(Ω,dvs) in a very natural way for 1 〈 p 〈 4-∞ and any real number s, that is, -∞ 〈 s 〈 +∞. This unified treatment covers some classical Bergman spaces, Besov spaces and Bloch spaces. Meanwhile, the boundedness of Bergman projection operators on Aα^P,β(Ω, dvs) and the dual of Aα^P,B(Ω, dvs) are given. 展开更多
关键词 bounded symmetric domains linear operator D^αB weighted Bergman space A^P Ω dvs) weighted Bergman space Aα^p β (Ω dvs DUALITY
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INVERSE PROBLEMS FOR A GENERAL MULTI-CONNECTED BOUNDED DRUM WITH APPLICATIONS IN PHYSICS 被引量:1
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作者 E.M.E.Zayed 《Acta Mathematica Scientia》 SCIE CSCD 2003年第1期104-116,共13页
This paper studies the influence of a finite container on an ideal gas.The trace of the heat kernel (t) =exp, where are the eigenvalues of the negative Laplacian -in Rn(n = 2 or 3), is studied for a general multi-conn... This paper studies the influence of a finite container on an ideal gas.The trace of the heat kernel (t) =exp, where are the eigenvalues of the negative Laplacian -in Rn(n = 2 or 3), is studied for a general multi-connected bounded drum ft which is surrounded by simply connected bounded domains Ωi with smooth boundaries Ωi(i = 1,… ,m) where the Dirichlet, Neumann and Robin boundary conditions on Ωi(i = 1,…,m) are considered. Some geometrical properties of Ω are determined. The thermodynamic quantities for an ideal gas enclosed in Ω are examined by using the asymptotic expansions of (t) for short-time t. It is shown that the ideal gas can not feel the shape of its container Ω, although it can feel some geometrical properties of it. 展开更多
关键词 Inverse problem heat kernel EIGENVALUES an ideal gas multi-connected bounded domain
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