共查询到20条相似文献,搜索用时 16 毫秒
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进一步研究Vague群。首先,给出Vague集和Vague群的几个性质;其次,引入(λ,μ)Vague群、(λ,μ)Vague正规群、(λ,μ)Vague正规化子、(λ,μ)Vague中心化子的概念,研究了它们的一些等价条件和在同态条件下像与原像的性质。 相似文献
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引入(λ,μ)-反模糊子环及各种(λ,μ)-反模糊理想的概念,得到了(λ,μ)-反模糊子环及各种(λ,μ)-反模糊理想的等价条件及其性质,建立了同态映射下(λ,μ)-反模糊子环及各种(λ,μ)-反模糊理想的对应定理。 相似文献
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王丰效 《高校应用数学学报(A辑)》2011,26(4):495-500
在布尔代数中引入了(λ,μ)-模糊子代数的概念,讨论了布尔代数的(λ,μ)模糊子代数的性质.证明了布尔代数的两个(λ,μ)-模糊子代数交与直积也是(λ,μ)-模糊子代数. 相似文献
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本文证明了无穷矩阵算子代数(λ,μ)在左(右)强、K收敛意义下的乘积定理成立,给出了(λ,μ)在弱收敛意义下乘积定理成立的充要条件。 相似文献
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在直觉模糊集理论的基础上,首先引入了(λ,μ)直觉模糊子环和(λ,μ)直觉模糊理想的概念,讨论了它们的相关性质;其次在环同态的意义下,研究了(λ,μ)直觉模糊子环和(λ,μ)直觉模糊理想的同态像及其逆像. 相似文献
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Positivity - This paper deals with (1, 1; r)-convexity of sequences. First, we prove several results on the sets of (1, 1; r)-convex sequences for various values... 相似文献
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半群中的(λ,μ)-模糊理想(英文) 总被引:2,自引:1,他引:1
在半群中给出了(λ,μ)-模糊子半群和各种(λ,μ)-模糊理想的概念,讨讹了它们的一些性质,并给出了各种(λ,μ)-模糊理想的充分必要条件. 相似文献
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《Advances in Applied Mathematics》2002,28(3-4):287-301
We show that the simple matroid PG(n − 1, q)\PG(k − 1, q), for n ≥ 4 and 1 ≤ k ≤ n − 2, is characterized by a variety of numerical and polynomial invariants. In particular, any matroid that has the same Tutte polynomial as PG(n − 1, q)\PG(k − 1, q) is isomorphic to PG(n − 1, q)\PG(k − 1, q). 相似文献
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在(λ,μ)-反模糊子环与(λ,μ)-反模糊理想概念的基础上,利用(λ,μ)-模糊映射给出了环的(λ,μ)-反模糊同态的定义,进而探讨了(λ,μ)-反模糊同态下(λ,μ)-反模糊子环与(λ,μ)-反模糊理想的对应关系,最后建立了环的(λ,μ)-反模糊同态基本定理。 相似文献
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基于(λ,μ)-反模糊子群概念及其基本性质,深入刻画了(λ,μ)-反模糊子群以及(λ,μ)-反模糊正规子群的结构.首先讨论了群G的(λ,μ)-反模糊子群在G的不同元素上隶属度的分布情况,其次研究了(λ,μ)-反模糊正规子群在G的不同元素上隶属度的分布情况,最后对循环群和阿贝尔群上(λ,μ)-反模糊子群及正规子群的结构进行详细讨论并给出了相应的结果. 相似文献
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模糊同态是模糊代数学的重要概念之一,它可由不同的模糊映射产生.本文在θ-模糊映射的基础上,引入环的(λ,μ,θ)-反模糊同态概念,研究了(λ,μ,θ)-反模糊同态下(λ,μ)-反模糊子环和(λ,μ)-反模糊理想的对应关系。最后,建立了环的(λ,μ,θ)-反模糊同态基本定理。 相似文献
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在(λ,μ)-模糊子群与(λ,μ)-模糊正规子群概念的基础上,讨论了(λ,μ)-模糊商群和(λ,μ)-商模糊子群的性质,并且建立了(λ,μ)-商模糊子群的同构定理。 相似文献
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David Chodounský Osvaldo Guzmán González Michael Hrušák 《Archive for Mathematical Logic》2016,55(3-4):493-504
We study the Mathias–Prikry and the Laver type forcings associated with filters and coideals. We isolate a crucial combinatorial property of Mathias reals, and prove that Mathias–Prikry forcings with summable ideals are all mutually bi-embeddable. We show that Mathias forcing associated with the complement of an analytic ideal always adds a dominating real. We also characterize filters for which the associated Mathias–Prikry forcing does not add eventually different reals, and show that they are countably generated provided they are Borel. We give a characterization of \({\omega}\)-hitting and \({\omega}\)-splitting families which retain their property in the extension by a Laver type forcing associated with a coideal. 相似文献
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Ferenc Weisz 《Analysis Mathematica》2001,27(2):141-155
The one-dimensional dyadic martingale Hardy spaces H
p are introduced and it is proved that the maximal operator of the (C,) means of a Walsh—Fourier series is bounded from H
p to L
p (1/( + 1) < p < ) and is of weak type (L
1,L
1). As a consequence, we obtain the summability result due to Fine; more exactly, the (C,) means of the Walsh—Fourier series of a function f L
1 converge a.e. to the function in question. Moreover, we prove that the (C,) means are uniformly bounded on H
p whenever 1/( + 1) < p < . We define the two-dimensional dyadic hybrid Hardy space H
1
and verify that the maximal operator of the (C,,) means of a two-dimensional function is of weak type H
1
,L
1). Consequence, the Walsh—Fourier series of every function f H
1
is (C,,) summable to the function f. 相似文献
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