可解群的$\cd(G)-1$个特征标次数构成的图

Let G be a group. We consider the set cd（G）／{m}, where m ∈ cd（G）. We define the graph △（G - m） whose vertex set is p（G - m）, the set of primes dividing degrees in cd（G）／{m}. There is an edge between p and q in p（G - m） ifpq divides a degree a ∈ cd（G）／{m}. We show that if G is solvable, then △（G - m） has at most two connected components.     

Extension of isometries on the unit sphere of l~p (Γ) space

In this paper,we obtain that every isometry from the unit sphere S(l p (Γ)) of l p (Γ) (1 p ∞,p≠2) onto the unit sphere S(E) of a Banach space E can be extended to be a (real) linear isometry of l p (Γ) onto E,so,we give an affirmative answer to the corresponding Tingley's problem.     

Some characterizations of the integrable Teichmüller space

In this paper, we prove that the Bers projection of the integrable Teichmller space is holomorphic. By using the Douady-Earle extension, we obtain some characterizations of the integrable Teichmller space as well as the p-integrable asymptotic affine homeomorphism.     

A Remark on the Generalized Roper-Suffridge Extension Operator for Almost Stalike Mappings of Order α

Suppose f is an almost starlike function of orderαon the unit disk D.In this paper,we will prove thatΦ_(n,β_2,γ_2,…,β_n,γ_n)(f)(z)=(f(z_1),((f(z_1)/z_1))~β_2(f′(z_1))~(γ_2)z_2,…, ((f(z_1)/z_1))~(β_n)(f′(z_1))~(γ_n)z_n)′preserves almost starlikeness of orderαonΩ_(n,p_1,p_2,…,p_n)={z= (z_1,z_2,…,z_n)′∈C~n:(sum from j=1 to n)|z_j|~(p_j)<1},where 0相似文献   

Extensions of Some Sufficient Conditions for Starlikeness and Convexity of Order β

The aim of the present paper is to investigate some sufficient conditions for starlikeness and convexity of two new operators ε_(α,λ)~γ and H_m~l(α_1) related to the generalized Mittag-Leffler function E_(α,λ)~γ and the generalized hypergeometric function,defined in the unit disk,respectively.The results presented here make connections to some of the earlier known developments.     

Some New Combinatorial Conditions on the Singular Fibre of a Fibration

Ｓｏｍｅ　Ｎｅｗ　Ｃｏｍｂｉｎａｔｏｒｉａｌ　Ｃｏｎｄｉｔｉｏｎｓ　ｏｎ　ｔｈｅ　Ｓｉｎｇｕｌａｒ　Ｆｉｂｒｅ　ｏｆ　ａ　ＦｉｂｒａｔｉｏｎＴａｎｇＭｉｎｇｙｙｕａｎ（唐明元）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＳｈａｎｇｈａｉＮｏｒｍ...     

Some Equivalent Conditions for the Differentiability of Continuous Gauge Functions on Banach Space

In this paper,some equivalent conditions for differentiability of condtinuous gauge function are given.     

Extension of Proper _-holom orphic Mappings

§１．　ＩｎｔｒｏｄｕｃｔｉｏｎＩｆＤ１，Ｄ２ａｒｅｔｗｏｓｍｏｏｔｈｂｏｕｎｄｅｄｐｓｅｕｄｏｃｏｎｖｅｘｄｏｍａｉｎｓｉｎＣｎ，Ｄ１ｓａｔｉｓｆｉｅｓｔｈｅｃｏｎｄｉｔｉｏｎＲ（ｓｅｅ［１］），ｉｔｉｓｗｅｌｌｋｎｏｗｎｔｈａｔａｎｙｂｉｈｏｌｏｍｏｒｐｈｉｃｍａｐｐｉｎｇｆ：Ｄ１→Ｄ２ｅｘｔｅｎｄｓｓｍｏｏｔｈｌｙｔｏｔｈｅｂｏｕｎｄａｒｙ．Ｔｈｉｓｒｅｓｕｌｔｈａｓｂｅｅｎｇｅｎｅｒａｌｉｚｅｄｔｏｔｈｅｃａｓｅｓｏｆｐｒｏｐｅｒｈｏｌｏｍｏｒｐｈｉｃｍａｐｐｉｎｇｓ（［２］）．Ｉｎｔｈ…     

The Isomorphism Theorem of Regular Bisimple ω~2-semigroups

In this paper we study the isomorphisms of two regular bisimple ω2-semigroups and obtain a criterion for two such semigroups to be isomorphic.     

I(L)弱诱导空间

引入 I(L)弱诱导空间与 I(L)底空间的概念 ,证明 I(L )弱诱导空间是遗传的、可乘的 ,给出一个 I(L)拓扑空间是 I(L )弱诱导空间的充分必要条件。     

三I表达式取最小值时的最优解

在本文中，针对蕴涵算子$R_0$,我们给出了当$A\rightarrow B$与$A^*(B^*)$给定时,求使三I表达式$(A\rightarrow B)\rightarrow(A^*\rightarrow B^*)$取最小值的全体$B^*(A^*)$之集的上确界(下确界)算法.并将上确界算法推广到多维多重的模糊推理中.从三I表达式取最值时求最优的$B^*(A^*)$的角度来看,本文是三I算法思想的延伸和完善.     

A Note on the π—regularity of Rings

LetRbeassociativewithanidentity.RingRiscalledaπ-regularringifandonlyifforeveryelementainR,thereexistsomen1,c∈Rsuchthatan=ancan.RingRiscalledaunitπ-regularringifandonlyifforanyelementainR,thereissomem1suchthatam=amuamforaunitu∈R.Manyringsareunitπ-regularrings,suchassemicommutativeπ-regularrings,finitesemicommutativerings,stronglyπ-regularringsandunit-regularrings.Risstronglyπ-regularifforeverya∈Rthereexistn1andc∈Rsuchthatan=an 1c.Ifthein-dexnaboveisoneforalla∈R,thenRiscalledabel…     

Perfect Preimages of Some Spaces

ＰｅｒｆｅｃｔＰｒｅｉｍａｇｅｓｏｆＳｏｍｅＳｐａｃｅｓ￥（林寿）ＬｉｎＳｎｏｕ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＮｉｎｇｄｅＴｅａｃｈｅｒｓ＇Ｃｏｌｌｅｇｅ，Ｎｉｎｇｌｅ，Ｆｕｊｉｎａ，３５２１００）Ａｂｓｔｒａｃｔ：ＩｎｔｈｉｓＰ...     

FMT-泛三I算法的约束度理论

从先前提出的泛三I算法出发,面向FMT(fuzzy modus tollens)问题,提出模糊推理的FMT-泛三I约束算法。改进之前的三I约束FMT原则,给出泛三I约束解的存在条件,建立FMT-泛三I约束算法的统一形式的解。并且,针对9种具体的蕴涵算子,获得相应的泛三I约束解。最后,给出并改进FMT-三I约束算法的相关结论。     

Basis Properties of the System of Root Functions of the Sturm–Liouville Operator with Degenerate Boundary Conditions: I

The spectral problem for the Sturm–Liouville operator with an arbitrary complex-valued potential q(x) of the class L¹(0, π) and degenerate boundary conditions is considered. We prove that the system of root functions of this operator is not a basis in the space L²(0, π).     

广义I型连通级小极大分式问题的对偶

在I型弧连通和广义I型弧连通假设下,建立了极大极小分式优化问题的对偶模型,并提出了弱对偶定理、强对偶定理和严格逆对偶定理.