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2. Nearly disjoint sequences in convergence l-groups
- Creator:
- Jakubík, Ján
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- nearly disjoint sequence, strong convergence, and convergence \ell-group
- Language:
- English
- Description:
- For an abelian lattice ordered group G let conv G be the system of all compatible convergences on G; this system is a meet semilattice but in general it fails to be a lattice. Let and be the convergence on G which is generated by the set of all nearly disjoint sequences in G, and let a be any element of conv G. In the present paper we prove that the join and V a does exist in conv G.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
3. On the Nörlund means of Vilenkin-Fourier series
- Creator:
- Blahota, István, Persson, Lars-Erik, and Tephnadze, Giorgi
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- matematika, mathematics, Vilenkin system, Vilenkin group, Nörlund means, martingale Hardy space, maximal operator, Vilenkin-Fourier series, strong convergence, inequality, 13, and 51
- Language:
- English
- Description:
- We prove and discuss some new (Hp,Lp)-type inequalities of weighted maximal operators of Vilenkin-Nörlund means with non-increasing coefficients {q_{k}:k\geqslant 0}. These results are the best possible in a special sense. As applications, some well-known as well as new results are pointed out in the theory of strong convergence of such Vilenkin-Nörlund means. To fulfil our main aims we also prove some new estimates of independent interest for the kernels of these summability results. In the special cases of general Nörlund means tn with non-increasing coefficients analogous results can be obtained for Fejér and Cesàro means by choosing the generating sequence {q_{k}:k\geqslant 0} in an appropriate way., István Blahota, Lars-Erik Persson, Giorgi Tephnadze., and Obsahuje seznam literatury
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
4. On the strong convergence for weighted sums of asymptotically almost negatively associated random variables
- Creator:
- Huang, Haiwu, Deng, Guangming, Zhang, Qingxia, and Jiang, Yuanying
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- AANA random variables, strong convergence, and weighted sums
- Language:
- English
- Description:
- Applying the moment inequality of asymptotically almost negatively associated (AANA, in short) random variables which was obtained by Yuan and An (2009), some strong convergence results for weighted sums of AANA random variables are obtained without assumptions of identical distribution, which generalize and improve the corresponding ones of Zhou et al. (2011), Sung (2011, 2012) to the case of AANA random variables, respectively.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public