正规化双全纯映照的增长和掩盖定理

在一般复Banach空间的单位球上引入正规化全纯映照族Mg,考虑满足条件(Df(x))-f(x)∈M9的正规化局部双全纯映照f(其中x=0是f(x)-x的k+1阶零点)并得到其增长和掩盖定理.所得结果统一和推广了许多已知结论.     

一类α次殆β型螺形映照的偏差上界估计

本文研究了复向量空间Cn中开单位球Bn,复Banach空间中单位球B和域?p1,···,pn上一类α次殆β型螺形映照的偏差估计问题.利用不等式、矩阵及α次殆β型螺形映照的增长定理等方法,获得了上述域上的一类α次殆β型螺形映照的偏差上界估计,所得结果推广了一些已知的结论.     

两类螺形映照扩充子族的偏差上界估计

偏差估计一直是多复变函数论的研究热点之一.但目前螺形映照扩充子族的偏差估计的研究成果还较少.针对这一问题,研究了复向量空间C_n中开单位球B_n,复Banach空间中单位球B和域Ω_(p_1,…,p_n)上一类α次β型,α次强β型螺形映照的偏差估计问题.利用不等式、矩阵及两类映照的增长定理等方法,获得了上述域上的两种映照的偏差上界估计,所得结果推广了一些已知的结论.     

α次β型螺形映照的增长与掩盖定理

In this paper,we consider growth and covering theorem for f(x),where f(x) is spiallike mapping of typeβwith orderαdefined on unit ball B of complex Banach space, and x=0 is zero of order k+1 for f(x)-x.We also dicate that the estimation is precise whenβ=0 and still give growth upper bound and distortion upper hound for subordinate mapping.This result include some results known.     

复Banach空间单位球上几类映射的增长掩盖定理

对α次的殆β型螺形映射,α次的β型螺形映射和α次的强β型螺形映射,给出了定义,并且在复Banach空间中的单位球上分别得到它们的增长掩盖定理．     

强α型螺形映照的偏差上界估计

利用强α型螺形映照的增长定理及推广的RDper-Suffridge算子的性质,讨论有界平衡域上强α型螺形映照的偏差上界,并作为特殊情况得到C~n中单位球B~n上强α型螺形映照的偏差上界估计以及强星形映照的偏差上界估计.所得结论丰富了对正规化双全纯映照的偏差的研究.     

复Banach空间单位球上几类映射的增长掩盖定理

对α次的殆β型螺形映射,α次的β型螺形映射和α次的强β型螺形映射,给出了定义,并且在复Banach空间中的单位球上分别得到它们的增长掩盖定理.     

(α,β)-γ开集与(α,β)-γ-Ti空间

本文首先给出(α,β)-γ开集定义,获得了(α,β)-γ开集性质;然后引入了(α,β)-γ-T_i空间和(α,β)-γ-T_i^*空间概念(i=0,1/2,1,2,5/2),并得到它们更广泛的拓扑性质.     

l~p、B~p及内积空间中螺形映照的增长定理与掩盖定理

本文首先给出l~p空间中单位球上双全纯螺形映照的增长与1/4-定理。作为一个特例,给出B~P上相应结果。其次讨论一般复内积空间上螺形映照的增长及1/4-定理。并证明结论是不可改进的。     

关于一类弱Berwald的(α,β)-度量

本文研究了一类重要的形如F=α +εβ +β arctan(β/α) (ε为常数)的弱Berwald (α, β)-度量.利用S-曲率公式,获得了这类度量为弱Berwald度量的充要条件.并且还证明了F为具有标量旗曲率的弱Berwald度量当且仅当它们为Berwald度量且旗曲率消失.     

FIXED POINT THEOREMS OF GENERALIZED CONTRACTIVE TYPE MAPPINGS(Ⅱ)

In this paper the author obtains several new fixed point theorems for generalized contractive type mappings by means of Kwapisz's contractive gauge function and then proves that lots of contractive type mappings are topologically equivalent to Banach contraction with given contractive constant C∈[0, 1).     

关于Banach空间中Lipschitz强伪压缩映象的带误差的Ishikawa型迭代序列

设Ｘ是任意实Ｂａｎａｃｈ空间Ｅ的闭子空间;Ｔ：Ｘ → Ｘ是 Ｌｉｐｓｃｈｉｔｚ强伪压缩映象,使得Ｔｘ＊＝ｘ＊,对某ｘ＊∈Ｘ．在没有条件 　之下,本文证明了带误差的Ｉｓｈｉｋａｗａ型迭代序列强收敛到ｘ＊．另外,相关结果又证明了,当Ｔ：Ｅ→Ｅ是Ｌｉｐｓｃｈｉｔｚ强增生算子时,带误差的Ｉｓｈｉｋａｗａ型迭代序列强收敛到方程Ｔｘ＝ｆ的唯一解．     

关于Banach空间中Lipschitz强伪压缩映象的带误差的Ishikawa型迭代序列

设X是任意实B&nach空间E的闭子空间,TX→X是Lipschitz强伪压缩映象,使得Tx*=x*,对某x*∈X…在没有条件limαn=nlimβn=0之下,本文证明了带误差的Ishikawa型迭代序列强收敛到x*.另外,相关结果又证明了,当TE→E是Lipschitz强增生算子时,带误差的Ishikawa型迭代序列强收敛到方程Tx=f的唯一解.     

半紧1—集压缩映射的不动点定理及固有值...

本文给出了与Ｌｅｒａｙ－Ｓｃｈａｕｄｅｒ边界条件紧密相关的其它五种形式：弱ＬＳ、弹ＢＰ、ＬＳＢ、弱ＣＲ和弱向内条件，并阐述这些条件之间关系。在此基础上，我们得到 了半紧１－集压缩映射的不动点定理及固有值。     

BEST PROXIMITY POINT THEOREMS FOR SINGLE- AND SET-VALUED NON-SELF MAPPINGS

We study the existence of best proximity points for single-valued non-self map-pings. Also, we prove a best proximity point theorem for set-valued non-self mappings in metric spaces with an appropriate geometric property. Examples are given to support the usability of our results.     

COINCIDENCE THEOREMS INVOLVING COMPOSITES OF ACYCLIC MAPPINGS AND APPLICATIONS

Some new coincidence theorems involving a newclass of set-valued mappings containing composites of acyclic mappings definedon a contractible space are proved. As applications, some existence theoremsof maximal elements and solutions of abstract variational inequalities, andbest approximation theorems are proved. These theorems improve and generalizea number of known results in recent literature.     

COINCIDENCE THEOREMS INVOKING COMPOSITES OF ACYCLIC MAPPINGS AND APPLICATIONS

1IntroductionRecentlytherehaveappearedanumberofnewfixedpointtheoremsandcoincidencetheorexnsinvolvingsthcalledKakutanifactorizablemultifunctionsorcompositesofacyclicset-valuedmappingsdefinedonconvexsubsetsoftopologicalvectorspaces;forexample,see[1-3].Intheseresults,authorsassumethateitherthedoesnOfmappingiscompact,orthemappillgiscompact.Inthispaper,wefirstprovesomeverygeneralcoincidencetheoremsinvolvingtheclassVJofset-valuedmappings"lidernoncompactsettingwhichgeneralizesTheoremIofPark,Singha…     

COMPARISON AND OSCILLATION THEOREMS FOR AN ADVANCED TYPE DIFFERENCE EQUATION

ＣＯＭＰＡＲＩＳＯＮ　ＡＮＤ　ＯＳＣＩＬＬＡＴＩＯＮ　ＴＨＥＯＲＥＭＳ　ＦＯＲ　ＡＮ　ＡＤＶＡＮＣＥＤ　ＴＹＰＥ　ＤＩＦＦＥＲＥＮＣＥ　ＥＱＵＡＴＩＯＮＣＯＭＰＡＲＩＳＯＮＡＮＤＯＳＣＩＬＬＡＴＩＯＮＴＨＥＯＲＥＭＳＦＯＲＡＮＡＤＶＡＮＣＥＤＴＹＰＥ...