نتایج جستجو برای: subset

تعداد نتایج: 100145  

In the transformation semigroup (X, S) we introduce the height of a closed nonempty invariant subset of X, define the transformed dimension of nonempty subset S of X and obtain some results and relations.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده اقتصاد و علوم اجتماعی 1390

تکانه های قیمت نفت که از تحولات برون زا سرچشمه می گیرند بزرگترین منبع اختلال در اقتصاد ایران محسوب می شوند.یکی از بخشهای اقتصاد که می تواند تحت تاثیر این تکانه ها قرار گیرد بازار سهام است. از طرفی تکانه های قیمتی نفت یکی از عوامل ایجاد تورم در کشور هستند، بنابراین درک نحوه تأثیر تکانه سیاست پولی ناشی از تکانه های قیمتی نفت بر حوزه وسیعتری از اقتصاد، ضرورتاً مستلزم آگاهی از اثر این اقدامات سیاستی...

Let G be a group. A subset X of G is a set of pairwise noncommuting elements if xy ̸= yx for any two distinct elements x and y in X. If |X| ≥ |Y | for any other set of pairwise non-commuting elements Y in G, then X is said to be a maximal subset of pairwise non-commuting elements. In this paper we determine the cardinality of a maximal subset of pairwise non-commuting elements in any non-abelian...

Intrusion detection systems are designed to provide security in computer networks, so that if the attacker crosses other security devices, they can detect and prevent the attack process. One of the most essential challenges in designing these systems is the so called curse of dimensionality. Therefore, in order to obtain satisfactory performance in these systems we have to take advantage of app...

Journal: :Clinical and vaccine immunology : CVI 2008
F Colombo A Cattaneo R Lopa P Portararo P Rebulla L Porretti

To evaluate the fully automated FACSCanto software, we compared lymphocyte subpopulation counts obtained using three-color FACSCalibur-CELLQuest and six-color FACSCanto-FACSCanto software techniques. High correlations were observed between data obtained with these techniques. Our study indicated that FACSCanto clinical software is accurate and sensitive in single-platform lymphocyte immunopheno...

Journal: :Electr. J. Comb. 2003
Sergey Agievich

Let m + n particles be thrown randomly, independently of each other into N cells, using the following two-stage procedure. 1. The first m particles are allocated equiprobably, that is, the probability of a particle falling into any particular cell is 1/N . Let the ith cell contain mi particles on completion. Then associate with this cell the probability ai = mi/m and withdraw the particles. 2. ...

Journal: :Finite Fields and Their Applications 2012
Guizhen Zhu Daqing Wan

Let Fq be the finite field of q elements. Let H ⊆ Fq be a multiplicative subgroup. For a positive integer k and element b ∈ Fq, we give a sharp estimate for the number of k-element subsets of H which sum to b.

Journal: :J. Comb. Theory, Ser. A 2012
Jiyou Li Daqing Wan

In this paper, we obtain an explicit formula for the number of zero-sum k-element subsets in any finite abelian group.

2013
Tamara Pozo-Rubio Amalia Capilla Jorge R. Mujico Giada de Palma Yolanda Sanz Isabel Polanco Maria Dolores García-Novo Gemma Castillejo Luis Ortigosa Luis Peña-Quintana Joan de Reus Joan de Deu Antonio Novais

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