نتایج جستجو برای: strong product

تعداد نتایج: 641267  

Background and objectives: Cervicitis is a common and recurrent gynecologic disease which is usually resistant to treatments. This study was conducted to investigate the effect of Iranian traditional medicine (ITM) product, flixweed- honey, on cervicitis. Methods: A quasi-experimental study was conducted as a clinical trial before and after the intervention at ...

2015
U. P. Acharya H. S. Mehta

Abstract—In graph theory, different types of products of two graphs had been studied, e.g., Cartesian product, Tensor product, Strong product, etc. In this paper we generalize the concept of Cartesian product of graphs.We define 2 Cartesian product and more generally r Cartesian product of two graphs. We study these product mainly for path graphs. We also discuss connectedness of the new graph.

2011
Iztok Peterin

Recently introduced invariants copoint pre-hull number and convex pre-hull number are both numerical measures of nonconvexity of a graph G that is a convex space. We consider in this work both on the Cartesian and the strong product of graphs. Exact values in terms of invariants of the factors are presented for the first mentioned product. For strong product it is shown that such a result does ...

2014
Richard H. Hammack Wilfried Imrich

This note describes fast algorithms for computing the prime factors of connected, nonbipartite graphs with respect to the direct product, and of connected graphs with respect to the strong product. The complexities are O(mmin(n,∆)) for the direct product, and O(ma(G)∆) for the strong, where n is the order of the graph G to be factored, m its size, a(G) its arboricity, and ∆ its maximum degree. ...

Journal: :Kybernetika 2010
Daniel Hlubinka Ondrej Vencálek Lukás Kotík

Generalised halfspace depth function is proposed. Basic properties of this depth function including the strong consistency are studied. We show, on several examples that our depth function may be considered to be more appropriate for nonsymetric distributions or for mixtures of distributions.

2017
Endre Boros Ondrej Cepek Kazuhisa Makino

For any simple connected graph $G=(V,E)$, a defensive alliance is a subset $S$ of $V$ satisfying the condition that every vertex $vin S$ has at most one more neighbour in $V-S$ than it has in $S$. The minimum cardinality of any defensive alliance in $G$ is called the alliance number of $G$, denoted $a(G)$. In this paper, we introduce a new type of alliance number called $k$-strong alliance numb...

Journal: :J. Multivariate Analysis 2016
Anuradha Roy Roman Zmyslony Miguel Fonseca Ricardo Leiva

The paper deals with the best unbiased estimators of the blocked compound symmetric covariance structure for m−variate observations over u sites under the assumption of multivariate normality. The free-coordinate approach is used to prove that the quadratic estimation of covariance parameters is equivalent to linear estimation with a properly defined inner product in the space of symmetric matr...

Journal: :EJGTA 2015
Shariefuddin Pirzada Muhammad Ali Khan Guofei Zhou Koko K. Kayibi

A k-hypertournament is a complete k-hypergraph with each k-edge endowed with an orientation, that is, a linear arrangement of the vertices contained in the edge. In a k-hypertournament, the score si (losing score ri) of a vertex vi is the number of arcs containing vi in which vi is not the last element (in which vi is the last element). The total score of vi is defined as ti = si − ri. In this ...

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