共查询到20条相似文献,搜索用时 78 毫秒
1.
2.
引入了强smooth格的概念,讨论了smooth格与强smooth格的一些基本性质,证明了强smooth格可用保任意交和Scott闭集之并的映射嵌入到某方体[0,1]X之中. 相似文献
3.
对完备格引入半素极小集的概念,证明完备格L为半连续格当且仅当L中的每个元在L中存在半素极小集,给出半连续格的两个序同态扩张定理. 相似文献
4.
5.
Stanis?awa Kanas 《Journal of Mathematical Analysis and Applications》2007,336(2):1005-1017
By means of the Briot-Bouquet differential subordination, we estimate the order of strong starlikeness of strongly convex functions of a prescribed order. We also make numerical experiments to examine our estimates. 相似文献
6.
朱占敏 《数学年刊A辑(中文版)》2017,38(3):313-326
设R是一个环,n是一个正整数.右R-模M称为强n-内射的,如果从任一自由右R-模F的任一n-生成子模到M的同态都可扩张为F到M的同态;右R-模V称为强n-平坦的,如果对于任一自由右R-模F的任一n-生成子模T,自然映射VT→VF是单的;环R称为左强n-凝聚的,如果自由左R-模的n-生成子模是有限表现的;环R称为左n-半遗传的,如果R的每个n-生成左理想是投射的.本文研究了强n-内射模,强n-平坦摸及左强n-凝聚环.通过模的强n-内射性和强n-平坦性概念,作者还给出了强n-凝聚环和n-半遗传环的一些刻画. 相似文献
7.
分两种情况讨论了分配格与有限代数的同余关系格同构的问题,给出判断分配格的充分必要条件,证明了两个结论:有限分配格是Boole格和具有可数个元的分配格的同余关系格是Boole格. 相似文献
8.
An R-module M is called strongly duo if Tr(N, M) = N for every N ≤ M R . Several equivalent conditions to being strongly duo are given. If M R is strongly duo and reduced, then End R (M) is a strongly regular ring and the converse is true when R is a Dedekind domain and M R is torsion. Over certain rings, nonsingular strongly duo modules are precisely regular duo modules. If R is a Dedekind domain, then M R is strongly duo if and only if either M ≈ R or M R is torsion and duo. Over a commutative ring, strongly duo modules are precisely pq-injective duo modules and every projective strongly duo module is a multiplication module. A ring R is called right strongly duo if R R is strongly duo. Strongly regular rings are precisely reduced (right) strongly duo rings. A ring R is Noetherian and all of its factor rings are right strongly duo if and only if R is a serial Artinian right duo ring. 相似文献
9.
A. R. Naghipour 《代数通讯》2013,41(7):2193-2199
Let R be a commutative ring with identity. For an R-module M, the notion of strongly prime submodule of M is defined. It is shown that this notion of prime submodule inherits most of the essential properties of the usual notion of prime ideal. In particular, the Generalized Principal Ideal Theorem is extended to modules. 相似文献
10.
On the Construction of Nondecomposable Definite Hermitian Forms 总被引:1,自引:0,他引:1
51.Introducti0nLetF=Q(In)beanimaginaryquadraticfieldandD.theringofintegersofF.wheremisasquare-freepositiveinteger.ForapositivedefiniteD.-latticeLthesetSesq>.(L)ofpositivesemidefinitesesquilinearformsoverD.,0requivalently,thesetofpositivesemidefiniteHermitianmatrices0verD.isasemigroupunderadd1tlon.AformoverD.whichcanbewrittenasthesumoftwon0n-zer0elementsinSesq>,(L)iscalledadditivelydecomposable,otherwlseitiscallednondecomp0sab1e.IftheD.-lattice(L,9)istheorthogonalsumoftwonon-zerosublatti… 相似文献
11.
相依样本情形时的经验似然比置信区间 总被引:9,自引:0,他引:9
本文讨论了强平稳φ混合样本的经验似然比置信区间,推广了Owen(1988,1990)在独立同分布情况下的结果,指出了相依情况时经验似然比置信区间的不足并进行了合理的改进。 相似文献
12.
13.
15.
Two lattice points are visible to one another if there exist no other lattice points on the line segment connecting them. In this paper we study convex lattice polygons that contain a lattice point such that all other lattice points in the polygon are visible from it. We completely classify such polygons, show that there are finitely many of lattice width greater than 2, and computationally enumerate them. As an application of this classification, we prove new obstructions to graphs arising as skeleta of tropical plane curves. 相似文献
16.
In general lattice theory,there are two basic criterion theorems: (1 ) A lattice L is modular if and only if L does not contain a pentagon N5(seeFig. 1 a) . (2 ) A lattice L is distributive ifand only if L contains neither a pentagon N5nor a dia-mond M3(see Fig. 1 b) . Now,the problem is that if L is semimodular,whether L possesses the similar char-acteristic?In this regard,the following conclusion is obtained in this paper: A lattice L is semimodular if and only if L does not co… 相似文献
17.
18.
Ljubomir B. Ćirić Jeong Sheok Ume Siniša N. Ješić Marina M. Arandjelović-Milovanović 《Numerical Functional Analysis & Optimization》2013,34(11-12):1231-1243
In this paper, we modify the Ishikawa iteration process and show that such process, associated with a nonlinear Lipschitzian generalized strongly pseudo-contractive operator with a fixed point in a (not necessarily uniformly smooth) Banach space, converges strongly to the unique fixed point of this operator. 相似文献
19.
Our main objective is to study properties of a fuzzy ideals(fuzzy dual ideals).A study of special types of fuzzy ideals(fuzzy dual ideals) is also furnished.Some properties of a fuzzy ideals(fuzzy dual ideals) are furnished.Properties of a fuzzy lattice homomorphism are discussed.Fuzzy ideal lattice of a fuzzy lattice is defined and discussed.Some results in fuzzy distributive lattice are proved. 相似文献