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SOLUTIONS OF GINZBURG-LANDAU EQUATIONS WITH WEIGHT AND MINIMIZERS OF THE RENORMALIZED ENERGY
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作者 Kou Yanlei Ding Shijin 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2007年第1期48-60,共13页
In this paper, it is proved that for any given d non-degenerate local minimum points of the renormalized energy of weighted Ginzburg-Landau eqautions, one can find solutions to the Ginzburg-Landau equations whose vort... In this paper, it is proved that for any given d non-degenerate local minimum points of the renormalized energy of weighted Ginzburg-Landau eqautions, one can find solutions to the Ginzburg-Landau equations whose vortices tend to these d points. This provides the connections between solutions of a class of Ginzburg-Landau equations with weight and minimizers of the renormalized energy. 展开更多
关键词 Ginzburg-Landau equation renormalized energy.
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ON THE GROWTH OF SOLUTIONS OF A CLASS OF HIGHER ORDER DIFFERENTIAL EQUATIONS 被引量:28
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作者 陈宗煊 孙光镐 《Acta Mathematica Scientia》 SCIE CSCD 2004年第1期52-60,共9页
In this paper, authors investigate the order of growth and the hyper order of solutions of a class of the higher order linear differential equation, and improve results of M. Ozawa, G. Gundersen and J.K. Langley, Li C... In this paper, authors investigate the order of growth and the hyper order of solutions of a class of the higher order linear differential equation, and improve results of M. Ozawa, G. Gundersen and J.K. Langley, Li Chun-hong. 展开更多
关键词 Differential equation entire function HYPER-ORDER
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The Growth of the Zero Dirichlet Series in Right Half Plane 被引量:8
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作者 TIAN Hong-gen SUN Dao-chun 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2007年第4期512-517,共6页
飞机被学习的在一半的零目和他们的生长上的二条定理的 Dirichlet 系列在这份报纸被获得。
关键词 DIRICHLET级数 低次 零次
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ESTIMATES FOR THE HYPER-ORDER OF SOLUTIONS OF CERTAIN LINEAR DIFFERENTIAL EQUATIONS 被引量:2
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作者 江良英 陈宗煊 《Acta Mathematica Scientia》 SCIE CSCD 2008年第2期393-400,共8页
In this article, the authors study the growth of certain second order linear differential equation f″+A(z)f′+B(z)f=0 and give precise estimates for the hyperorder of solutions of infinite order. Under similar ... In this article, the authors study the growth of certain second order linear differential equation f″+A(z)f′+B(z)f=0 and give precise estimates for the hyperorder of solutions of infinite order. Under similar conditions, higher order differential equations will be considered. 展开更多
关键词 Linear differential equation entire function HYPER-ORDER GENUS
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LOCATION OF THE BLOW UP POINT FOR POSITIVE SOLUTIONS OF A BIHARMONIC EQUATION INVOLVING NEARLY CRITICAL EXPONENT 被引量:1
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作者 耿堤 《Acta Mathematica Scientia》 SCIE CSCD 2005年第2期283-295,共13页
In this paper a semilinear biharmonic problem involving nearly critical growth with Navier boundary condition is considered on an any bounded smooth domain. It is proved that positive solutions concentrate on a point ... In this paper a semilinear biharmonic problem involving nearly critical growth with Navier boundary condition is considered on an any bounded smooth domain. It is proved that positive solutions concentrate on a point in the domain, which is also a critical point of the Robin’s function corresponding to the Green’s function of biharmonic operator with the same boundary condition. Similar conclusion has been obtained in [6] under the condition that the domain is strictly convex. 展开更多
关键词 Biharmonic operator Navier boundary conditions asymptotic behavior critical exponents Green's function
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THE MONOTONICITY OF CONVERGENCE RATE FOR MGS METHODS 被引量:1
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作者 Li Wen(黎稳) 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 2002年第1期89-93,共5页
In this paper we prove that the convergence rate of the modified Gauss-Seidel method is a monotonic function for some precondition parameters.
关键词 precondition CONVERGENCE rate MONOTONIC function.
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LARGE TIME BEHAVIOR OF SOLUTIONS TO NEWTONIAN FILTRATION EQUATIONS WITH SOURCES 被引量:1
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作者 王路生 尹景学 王泽佳 《Acta Mathematica Scientia》 SCIE CSCD 2010年第3期968-974,共7页
This article is concerned with large time behavior of solutions to the Neumann or Dirichlet problem for a class of Newtonian filtration equations |x|λ+Эt^-Эu=div(|x|^k∨u^m)+|x|λ+ku^p with 0 〈 m 〈... This article is concerned with large time behavior of solutions to the Neumann or Dirichlet problem for a class of Newtonian filtration equations |x|λ+Эt^-Эu=div(|x|^k∨u^m)+|x|λ+ku^p with 0 〈 m 〈 1,p 〉 1,λ≥0, k ∈ R. An interesting phenomenon is that there exist two thresholds k∞ and kl for the exponent k, such that the critical Fujita exponent pc for p exists and is finite if k E (k∞, k1), otherwise, pc is infinite or does not exist. 展开更多
关键词 Newtonian filtration equation critical exponent exterior problem Thresh -old
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ON THE GROWTH OF INFINITE ORDER DIRICHLET SERIES 被引量:1
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作者 陈特为 孙道椿 《Acta Mathematica Scientia》 SCIE CSCD 2003年第2期247-251,共5页
In this paper, the property of infinite order Dirichlet series in the half-plane are investigated. The more exact growth of infinite order Dirichlet series is obtained without using logarithm argument to the type-func... In this paper, the property of infinite order Dirichlet series in the half-plane are investigated. The more exact growth of infinite order Dirichlet series is obtained without using logarithm argument to the type-function for the first time. 展开更多
关键词 Dirichlet series type-function GROWTH
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ON THE INVERSE IMAGE SET OF RATIONAL FUNCTIONS
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作者 孙道椿 《Acta Mathematica Scientia》 SCIE CSCD 2007年第3期541-548,共8页
This article studies the inverse image of rational functions. Several theorems are obtained on the Julia set expressed by the inverse image, and a mistake is pointed out in H.Brolin' theorem incidentally.
关键词 Rational dynamical system Julila set Fatou component
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BLOCK H-MATRICES AND SPECTRUM OF BLOCK MATRICES
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作者 HUANG Ting-zhu(黄廷祝) +1 位作者 LI Wen(黎稳) 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2002年第2期236-240,共5页
The block H-matrices are studied by the concept of G-functions, several concepts of block matrices are introduced. Equivalent characters of block H-matrices are obtained. Spectrum localizations characterized by G-func... The block H-matrices are studied by the concept of G-functions, several concepts of block matrices are introduced. Equivalent characters of block H-matrices are obtained. Spectrum localizations characterized by G-functions for block matrices are got. 展开更多
关键词 block H-matrix SPECTRUM G-FUNCTION EIGENVALUE irreducible matrix
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LOCAL CLASSICAL SOLUTION OF FREE BOUNDARY PROBLEM FOR A COUPLED SYSTEM
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作者 王晓华 易法槐 杨舟 《Acta Mathematica Scientia》 SCIE CSCD 2005年第2期259-273,共15页
This paper considers a two-phase free boundary problem for coupled system including one parabolic equation and two elliptic equations. The problem comes from the discussion of a growth model of self-maintaining protoc... This paper considers a two-phase free boundary problem for coupled system including one parabolic equation and two elliptic equations. The problem comes from the discussion of a growth model of self-maintaining protocell in multidimensional case. The local classical solution of the problem with free boundary (?) y = g(x,t) between two domains is being seeked. The local existence and uniqueness of the problem will be proved in multidimensional case. 展开更多
关键词 Local existence free boundary coupled system
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THE RELATION OF TWO-DIMENSIONAL VISCOUS CAMASSA-HOLM EQUATIONS AND THE NAVIER-STOKES EQUATIONS
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作者 杨灵娥 纪艳珊 郭柏灵 《Acta Mathematica Scientia》 SCIE CSCD 2009年第1期65-73,共9页
In this article, the authors show the existence of global solution of two-dimensional viscous Camassa-Holm (Navier-Stokes-alpha) (NS-α) equations. The authors also prove that the solution of the NS-α equations conve... In this article, the authors show the existence of global solution of two-dimensional viscous Camassa-Holm (Navier-Stokes-alpha) (NS-α) equations. The authors also prove that the solution of the NS-α equations converges to the solution of the 2D NS equations in the inviscid limit and give the convergence rate of the difference of the solution. 展开更多
关键词 inviscid limits Navier-Stokes-α model Camassa-Holm equations
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THE EXTENSION OPERATOR IN BANACH SPACES FOR LOCALLY BIHOLOMORPHIC MAPPINGS 被引量:5
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作者 刘名生 朱玉灿 《Acta Mathematica Scientia》 SCIE CSCD 2008年第3期711-720,共10页
In this article, the generalized Roper-Suffridge extension operator in Banach spaces for locally biholomorphic mappings is introduced. It is proved that this operator preserves the starlikeness on some domains in Bana... In this article, the generalized Roper-Suffridge extension operator in Banach spaces for locally biholomorphic mappings is introduced. It is proved that this operator preserves the starlikeness on some domains in Banach spaces but does not preserves convexity for some cases. Moreover, the growth theorem, covering theorem, and the radius of starlikeness are discussed. Some results of Roper and Suffridge, Gong and Liu, Graham et al in C^n are extended to Hilbert spaces or Banach spaces. 展开更多
关键词 Biholomorphic starlike mapping biholomorphic convex mapping the Roper-Suffridge extension operator
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On the Extension Operator in Banach Spaces 被引量:3
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作者 刘名生 朱玉灿 《数学进展》 CSCD 北大核心 2005年第4期506-508,共3页
In [1], Roper and Suffridge introduced an extension operator. This operator is defined for normalized locally univalent function f on the unit disc U = {z ∈ C: |z| < 1} in C by Фn(f)(z)=(f(z1),√f'(z1)z0),where... In [1], Roper and Suffridge introduced an extension operator. This operator is defined for normalized locally univalent function f on the unit disc U = {z ∈ C: |z| < 1} in C by Фn(f)(z)=(f(z1),√f'(z1)z0),where z = (z1,z0) belongs to the unit ball Bn in Cn, z1 ∈ U, z0 = (z2,…,zn) ∈ Cn-1, and we choose the branch of the square root such that √f'(0) = 1. 展开更多
关键词 BANACH空间 扩展算子 单一函数 线性空间
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PARTIAL COMPACTNESS FOR LANDAU-LIFSHITZ MAXWELL EQUATION IN TWO-DIMENSION 被引量:1
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作者 寇艳蕾 丁时进 《Acta Mathematica Scientia》 SCIE CSCD 2011年第2期727-748,共22页
We study the partial regularity of weak solutions to the 2-dimensional Landau- Lifshitz equations coupled with time dependent Maxwell equations by Ginzburg-Landau type approximation. Outside an energy concentration se... We study the partial regularity of weak solutions to the 2-dimensional Landau- Lifshitz equations coupled with time dependent Maxwell equations by Ginzburg-Landau type approximation. Outside an energy concentration set of locally finite 2-dimensional parabolic Hausdorff measure, we prove the uniform local C∞ bounds for the approaching solutions and then extract a subsequence converging to a global weak solution of the Landau-Lifshitz-Maxwell equations which are smooth away from finitely many points. 展开更多
关键词 Landau-Lifshitz-Maxwell equations ginzburg-landau approximations Haus-dorff measure partial regularity
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Normal family of quasimeromorphic mappings 被引量:1
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作者 孙道椿 杨乐 《Science China Mathematics》 SCIE 2003年第4期440-449,共10页
The more general quasimeromorphic mappings are studied with the geometric method. The necessary and sufficient conditions for the normality of the family of quasimeromorphic mappings are discussed. We proved two inequ... The more general quasimeromorphic mappings are studied with the geometric method. The necessary and sufficient conditions for the normality of the family of quasimeromorphic mappings are discussed. We proved two inequalities on the covering surface and obtained some normal criteria on quasimeromorphic mappings with them. Obviously, these criteria hold for meromorphic functions. 展开更多
关键词 quasimeromorphic mapping NORMAL family COVERING surface.
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Kamenev-type Oscillation Criteria for Semilinear Elliptic Differential Equations 被引量:2
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作者 徐志庭 邢鸿雁 《Northeastern Mathematical Journal》 CSCD 2004年第2期153-160,共8页
Oscillation criteria for semilinear elliptic differential equations are obtained. The results are extensions of integral averaging technique of Kamenev. General means are employed to establish our results.
关键词 OSCILLATION semilinear elliptic differential equation integral operator Riccati inequality
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Traveling waves in nonlocal diffusion systems with delays and partial quasi-monotonicity
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作者 XU Zhao-quan WENG Pei-xuan 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2011年第4期464-482,共19页
This paper is devoted to the study of a three-dimensional delayed system with nonlocal diffusion and partial quasi-monotonicity. By developing a new definition of upper-lower solutions and a new cross iteration scheme... This paper is devoted to the study of a three-dimensional delayed system with nonlocal diffusion and partial quasi-monotonicity. By developing a new definition of upper-lower solutions and a new cross iteration scheme, we establish some existence results of traveling wave solutions. The results are applied to a nonlocal diffusion model which takes the three-species Lotka-Volterra model as its special case. 展开更多
关键词 Traveling wave nonlocal diffusion partial quasi-monotonicity upper and lower solution cross iteration scheme.
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T1 THEOREM FOR BESOV SPACES ON NONHOMOGENEOUS SPACES
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作者 Donggao Deng Yanchang Han 《Analysis in Theory and Applications》 2005年第3期280-293,共14页
Suppose μ is a Radon measure on R^d, which may be non doubling. The only condition assumed on μ is a growth condition, namely, there is a constant Co 〉 0 such that for all x ∈ supp(μ) and r 〉 0, μ(B(x, r)... Suppose μ is a Radon measure on R^d, which may be non doubling. The only condition assumed on μ is a growth condition, namely, there is a constant Co 〉 0 such that for all x ∈ supp(μ) and r 〉 0, μ(B(x, r)) ≤ Cor^n, where 0 〈 n ≤ d. We prove T1 theorem for non doubling measures with weak kernel conditions. Our approach yields new results for kernels satisfying weakened regularity conditions, while recovering previously known Tolsa's results. We also prove T1 theorem for Besov spaces on nonhomogeneous spaces with weak kernel conditions given in [7] . 展开更多
关键词 Besov space T1 theorem nonhomogeneous space Calderón-Zygmund operator Littlewood-Paley theory
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A Note on the Product Borel Probability Measure
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作者 MA Dong-kui XU Zhi-ting 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2006年第1期57-61,共5页
在这份报纸,是在一些紧缩的公制的空格的产品空间的产品 Borel 概率措施的一项措施的一个必要、足够的条件被给。
关键词 紧度量空间 Borel概率测量 产品度量 必然性 充分条件
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