نتایج جستجو برای: type kernel

تعداد نتایج: 1387540  

2008
Elena P. Ushakova ELENA P. USHAKOVA

New conditions of Lp[0,∞)−Lq[0,∞) boundedness and compactness for the operator f → w(x) R b(x) a(x) k(x, y)f(y)v(y)dy with locally integrable weight functions v, w and a positive continuous kernel k(x, y) from Oinarov’s type class are obtained for 1 < p, q <∞.

Journal: :transactions on combinatorics 2014
r. lakshmi s. vidhyapriya

a kernel $j$ of a digraph $d$ is an independent set of vertices of $d$ such that for every vertex $w,in,v(d),setminus,j$ there exists an arc from $w$ to a vertex in $j.$in this paper, among other results, a characterization of $2$-regular circulant digraph having a kernel is obtained. this characterization is a partial solution to the following problem: characterize circulant digraphs which hav...

محمدی, علی, عبدوسی, وحید , محمودی, محمد جواد, نجف آبادی, فاضل, وحدتی, کورش ,

Identification and selection of superior genotypes is the first step in walnut breeding programs. For identifying superior genotypes in Lorestan province, Iran, 35000 seedling genotypes were evaluated during 2008-2009. 29 Phenological traits were evaluated using IPGIRI descriptors in 288 selected seedling genotypes. Finally 54 promising genotypes with 10 major phenological traits were evaluated...

2008
Vladimir D. Stepanov Elena P. Ushakova VLADIMIR D. STEPANOV ELENA P. USHAKOVA

New criteria of Lp − Lq boundedness of Hardy-Steklov type operator (1.1) with both increasing on (0, ∞) boundary functions a(x) and b(x) are obtained for 1 < p ≤ q < ∞ and 0 < q < p < ∞, p > 1. This result is applied for two-weighted Lp − Lq characterization of the corresponding geometric Steklov operator (1.3) and other related problems.

Journal: :The Journal of Nonlinear Sciences and Applications 2017

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