期刊文献+
共找到148篇文章
< 1 2 8 >
每页显示 20 50 100
SOME REMARKS ON (L)-GREEN’S RELATIONS AND STRONGLY RPP SEMIGROUPS 被引量:1
1
作者 杜兰 郭聿琦 K.P. Shum 《Acta Mathematica Scientia》 SCIE CSCD 2011年第4期1591-1599,共9页
In order to study rpp semigroups, in particular, some special cases, several facts on (l)-Green’s relations and strongly rpp semigroups are given as some remarks.
关键词 (l)-Green’s relations strongly rpp semigroups semilattice congruences Dprimitive idempotents
下载PDF
Some Characterizations of Strongly Semisimple Ordered Semigroups
2
作者 Tang Jian Xie Xiang-yun Du Xian-kun 《Communications in Mathematical Research》 CSCD 2013年第2期155-166,共12页
In this paper, the concept of quasi-prime fuzzy left ideals of an ordered semigroup S is introduced. Some characterizations of strongly semisimple ordered semigroups are given by quasi-prime fuzzy left ideals of S. In... In this paper, the concept of quasi-prime fuzzy left ideals of an ordered semigroup S is introduced. Some characterizations of strongly semisimple ordered semigroups are given by quasi-prime fuzzy left ideals of S. In particular, we prove that S is strongly semisimple if and only if each fuzzy left ideal of S is the intersection of all quasi-prime fuzzy left ideals of S containing it. 展开更多
关键词 ordered semigroup ordered fuzzy point quasi-prime fuzzy left ideal strongly semisimple ordered semigroup
下载PDF
ON THE SPECTRAL CHARACTERIZATION OF A STRONGLY CONTINUOUS PERTURBED SEMIGROUP
3
作者 王海燕 阳名珠 《Acta Mathematica Scientia》 SCIE CSCD 1995年第S1期64-69,共6页
In this paper, we get a sufficient condition to estimate the essential type of a strongly continuous sendgroup in a Banach space, using oh condition we prove that the essential type of the strongly continuous semigro... In this paper, we get a sufficient condition to estimate the essential type of a strongly continuous sendgroup in a Banach space, using oh condition we prove that the essential type of the strongly continuous semigroup don't increase under the A-smoothing perturbation and establish the spectral mapping theorem for the asymptotic parts of the spectrum of generator and semgroup. 展开更多
关键词 strongly continuous semigroup Spectral mapping theorem Essential type.
下载PDF
The Translational Hull of Strongly Inverse Wrpp Semigroups
4
作者 邱书明 《Chinese Quarterly Journal of Mathematics》 2017年第1期59-65,共7页
In this paper, we obtain some characterizations of the translational hull of strongly inverse wrpp semigroups. And we prove that the translational hull of a strongly inverse wrpp semigroup is still of the same type.
关键词 translational hull wrpp semigroups strongly inverse wrpp semigroups
下载PDF
P-kernel Normal System of Strong P-congruences on P-inversive Semigroups 被引量:1
5
作者 范兴奎 陈倩华 《Northeastern Mathematical Journal》 CSCD 2005年第4期397-403,共7页
Let S(P) be a P-inversive semigroup. In this paper we describe the strong P-congruences on S(P) in terms of their P-kernel normal systems. We prove that any strong P-congruence on S(P) can present a P-kernel nor... Let S(P) be a P-inversive semigroup. In this paper we describe the strong P-congruences on S(P) in terms of their P-kernel normal systems. We prove that any strong P-congruence on S(P) can present a P-kernel normal system; conversely any P-kernel normal system of S(P) can determine a strong P-congruence. 展开更多
关键词 P-inversive semigroup strong P-congruence P-kernel normal system
下载PDF
On the Properties of the Solution of a Strongly Degenerate Parabolic Equation
6
作者 程福霞 李锐 《Chinese Quarterly Journal of Mathematics》 CSCD 1996年第4期98-103, ,共6页
For a strongly degenerate parabolic equation, we first use the results of Ph. Blanc[1] to get that the Neumann problem may not have a global classical solution. The reason is that the gradients of some local classical... For a strongly degenerate parabolic equation, we first use the results of Ph. Blanc[1] to get that the Neumann problem may not have a global classical solution. The reason is that the gradients of some local classical solutions blow up in finite time. And under some conditions, we get the global integral solution by the use of semigroup. Then, we give a sufficient condition under which the Neumann problem has a global classical solution. Finally. we study the asymptotic behaviour of the classical solution and prove that the solution converges to the mean of the initial value. 展开更多
关键词 strongly degenerate parabolic equation semigroup comparison theorem
下载PDF
<i>α</i>-Times Integrated C Semigroups and Strong Solution of Abstract Cauchy Problem
7
作者 Man Liu Shuling Wang +1 位作者 Qingzhi Yu Zhengming Wang 《International Journal of Modern Nonlinear Theory and Application》 2013年第3期164-166,共3页
The infinite generator of α-times Integrated C semigroups and the properties of resolvent are given. At the same time, we discuss the relationship between the existence of strong solution of a class of nonhomogeneous... The infinite generator of α-times Integrated C semigroups and the properties of resolvent are given. At the same time, we discuss the relationship between the existence of strong solution of a class of nonhomogeneous abstract Cauchy problem and α-times integrated C semigroups, and a sufficient and necessary condition is obtained. 展开更多
关键词 α-Times INTEGRATED C semigroupS Abstract CAUCHY Problem strong Solution
下载PDF
Unitariness in Ordered Semigroups
8
作者 Michael Tsingelis 《Applied Mathematics》 2023年第8期531-543,共13页
We introduce the concepts of unitary, almost unitary and strongly almost unitary subset of an ordered semigroup. For the notions of almost unitary and strongly almost unitary subset of an ordered semigroup, we use the... We introduce the concepts of unitary, almost unitary and strongly almost unitary subset of an ordered semigroup. For the notions of almost unitary and strongly almost unitary subset of an ordered semigroup, we use the notion of translational hull of an ordered semigroup. If (S,⋅,≤) is an ordered semigroup having an element e such that e ≤ e<sup>2</sup> and U is a nonempty subset of S such that u ≤ eu, u ≤ ue for all u ∈ U, we show that U is almost unitary in S if and only if U is unitary in . Also if (S,⋅,≤) is an ordered semigroup, e ∉ S, U is a nonempty subset of S, S<sup>e</sup>:= S ∪ {e} and U<sup>e</sup>:= U ∪ {e}, we give conditions that an (“extension” of S) ordered semigroup and the subset U<sup>e</sup> of S<sup>e</sup> must satisfy in order for U to be almost unitary or strongly almost unitary in S (in case U is strongly almost unitary in S, then the given conditions are equivalent). 展开更多
关键词 Left (Right) Translation of an Ordered semigroup Bitranslation of an Ordered semigroup Translational Hull of an Ordered semigroup Unitary Subset of an Ordered semigroup Almost Unitary Subset of an Ordered semigroup strongly almost Unitary Subset of an Ordered semigroup
下载PDF
DIFFERENTIABILITY OF C_0-SEMIGROUPS WITH APPLICATION
9
作者 金振东 喻文焕 +1 位作者 靳展 王辅敏 《Transactions of Tianjin University》 EI CAS 1999年第2期25-29,共5页
This paper considers the differentiability of C 0 semigroups with respect to (w.r.t.) parameters contained in their infinitesimal generators.It is proved that the generalized continuity and strong differentiability ... This paper considers the differentiability of C 0 semigroups with respect to (w.r.t.) parameters contained in their infinitesimal generators.It is proved that the generalized continuity and strong differentiability of their infinitesimal generators w.r.t.parameters imply the differentiability of the C 0 semigroups.The results are applied to the differentiability of the solution of a linear delay differential equation w.r.t.its delays. 展开更多
关键词 C 0 semigroup infinitesimal generator generalized continuity strongly Frechet differential dalay equation
下载PDF
P-kernel Normal Systems in Weakly P-inversive Semigroups 被引量:1
10
作者 CHEN Qian-hua FAN Xing-kui 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2008年第2期171-177,共7页
In this paper, we first give the concept of weakly P-inversive semigroup S(P). Then we describe the strong P-congruences on S(P) in terms of their P-kernel normal systems. It is proved that there is a bijection be... In this paper, we first give the concept of weakly P-inversive semigroup S(P). Then we describe the strong P-congruences on S(P) in terms of their P-kernel normal systems. It is proved that there is a bijection between the strong P-congruences and the P-kernel normal systems. Finally, it is also prove that the lattice of strong P-congruences and the lattice of P-kernel normal systems on S(P) are isomorphic. 展开更多
关键词 weakly P-inversive semigroup strong P-congruence P-kernel normal system lattice isomorphism
下载PDF
The Structure of NBe-rpp Semigroups 被引量:1
11
作者 郭小江 《Northeastern Mathematical Journal》 CSCD 2000年第4期398-404,共7页
The aim of this paper is to study a class of strongly rpp semigroups with normal idempotent bands, so called NBe rpp semigroups. The structure of such semigroups is established in terms of C rpp semigrou... The aim of this paper is to study a class of strongly rpp semigroups with normal idempotent bands, so called NBe rpp semigroups. The structure of such semigroups is established in terms of C rpp semigroups and normal bands. 展开更多
关键词 strongly rpp semigroup NBe rpp semigroup C rpp semigroup normal band
下载PDF
An Iterative Algorithm for Generalized Mixed Equilibrium Problems and Fixed Points of Nonexpansive Semigroups 被引量:1
12
作者 Jong Kyu Kim Salahud din Won Hee Won Hee 《Journal of Applied Mathematics and Physics》 2017年第2期276-293,共18页
In this works, by using the modified viscosity approximation method associated with Meir-Keeler contractions, we proved the convergence theorem for solving the fixed point problem of a nonexpansive semigroup and gener... In this works, by using the modified viscosity approximation method associated with Meir-Keeler contractions, we proved the convergence theorem for solving the fixed point problem of a nonexpansive semigroup and generalized mixed equilibrium problems in Hilbert spaces. 展开更多
关键词 Meir-Keeler Contraction MAPPINGS Left Regular Generalized Mixed Equilibrium Problems Variational INEQUALITIES α-Inverse strongly MONOTONE MAPPINGS NONEXPANSIVE semigroupS
下载PDF
Common Fixed Point Theorems for Totally Quasi-G-Asymptotically Nonexpansive Semigroups with the Generalized f-Projection
13
作者 Chunjie Wang Yuanheng Wang 《Applied Mathematics》 2014年第1期25-34,共10页
In this paper, we introduce some new classes of the totally quasi-G-asymptotically nonexpansive mappings and the totally quasi-G-asymptotically nonexpansive semigroups. Then, with the generalized f-projection operator... In this paper, we introduce some new classes of the totally quasi-G-asymptotically nonexpansive mappings and the totally quasi-G-asymptotically nonexpansive semigroups. Then, with the generalized f-projection operator, we prove some strong convergence theorems of a new modified Halpern type hybrid iterative algorithm for the totally quasi-G-asymptotically nonexpansive semigroups in Banach space. The results presented in this paper extend and improve some corresponding ones by many others. 展开更多
关键词 Totally Quasi-G-Asymptotically NONEXPANSIVE semigroup Generalized f-Projection Operator Modified Halpern Type Hybrid Iterative Algorithm strong Convergence Theorem
下载PDF
ω-Extension of Bicyclic Semigroup
14
作者 朱雯 詹亮 《Chinese Quarterly Journal of Mathematics》 CSCD 2009年第3期415-419,共5页
In this paper, we discussed w-extension of bicyclic semigroups. Two types of this extension are proposed. In §2 we discussed strong semilattice extension and the structure of the extension is well presented. In &... In this paper, we discussed w-extension of bicyclic semigroups. Two types of this extension are proposed. In §2 we discussed strong semilattice extension and the structure of the extension is well presented. In §3 we discussed another order extension. We proved that congruence lattice of this extension semigroups is union set of two sublattice. One is the group congruence semilattice, the other is the pure idempotent congruence semilattice. 展开更多
关键词 bicyclic semigroup strong semilatlice group congruence pure idempotent congruence
下载PDF
强混合的广义C-半群的存在性
15
作者 刘瑞 张晨曦 尤肖肖 《延安大学学报(自然科学版)》 2023年第2期99-102,110,共5页
利用广义C-半群的定义、生成元的概念和性质、C-半群所具有的强混合的一些结论,在传统的强混合C_(0)-半群和强混合C-半群的基础上,给出了广义的强混合C-半群的概念,并对Banach空间上强混合的广义C-半群的存在性进行研究,证明了每个可分... 利用广义C-半群的定义、生成元的概念和性质、C-半群所具有的强混合的一些结论,在传统的强混合C_(0)-半群和强混合C-半群的基础上,给出了广义的强混合C-半群的概念,并对Banach空间上强混合的广义C-半群的存在性进行研究,证明了每个可分的无限维复Banach空间上都存在一个强混合的广义C-半群,从而推广了广义C-半群的内容。 展开更多
关键词 广义C-半群 强混合 生成元
下载PDF
The translational hull of a strongly right type-A semigroup 被引量:2
16
作者 郭小江 郭聿琦 《Science China Mathematics》 SCIE 2000年第1期6-12,共7页
It is proved that the translational hull of a strongly right type-A (C-rpp) semigroup is itself a strongly right type-A(C-rpp) semigroup.
关键词 strongly RIGHT type-A semigroupS left (right) TRANSLATIONS translational hulls semilattices.
原文传递
Banach空间上强混合的C_0-半群 被引量:3
17
作者 姚玉武 刘恒 胡秀林 《数学年刊(A辑)》 CSCD 北大核心 2010年第2期203-210,共8页
证明了每个可分无限维复Banach空间上都存在一个强混合的C_0-半群,在加权函数空间上给出了转移半群是强混合的一个充要条件.
关键词 强混合 C0-半群 转移半群 BANACH空间
下载PDF
强左π-逆半群的半直积 被引量:8
18
作者 张玉芬 张爱平 陈秀梅 《山东师范大学学报(自然科学版)》 CAS 2005年第2期1-2,共2页
在π-正则半群范围内讨论半群的半直积.给出了两个半群的半直积为强左π-逆半群的充要条件,给半群结构的研究提供了一种新的方法.
关键词 半群 强左π-逆半群 半直积
下载PDF
P-反演半群上的强P-同余(英文) 被引量:11
19
作者 范兴奎 陈倩华 《数学进展》 CSCD 北大核心 2004年第4期434-440,共7页
本文介绍了P-反演半群S(P)的概念,借助于核与迹刻画了P-反演半群上的强P-同余.并且证明了S(P)上的任一强P-同余可以决定S(P)的一个强p-同余对,反之S(P)的任一强P-同余对,可以决定S(P)上的一个强P-同余.
关键词 P-反演半群 强P-同余 正规子集 强P-同余对
下载PDF
强幂等元、强周期半群及π正则半群 被引量:4
20
作者 张新建 唐善桂 《国防科技大学学报》 EI CAS CSCD 2000年第2期115-116,共2页
由半群中幂等元的性质推断该半群的性质 ,是半群代数理论中的一个基本问题。为此 ,引入了强幂等元和强周期半群的概念 ,通过对它们若干性质的讨论 ,给出了正则半群的所有幂等元为强幂等元的充分必要条件 ,建立了强周期半群与严格
关键词 强幂等元 强周期半群 严格π正则半群
下载PDF
上一页 1 2 8 下一页 到第
使用帮助 返回顶部