نتایج جستجو برای: neighbourhood polynomial

تعداد نتایج: 108026  

Journal: :computational methods for differential equations 0
reza hejazi shahrood university of technology elham lashkarian shahrood university of technology

‎this paper obtains the exact solutions of the wave equation as a second-order partial differential equation (pde)‎. ‎we are going to calculate polynomial and non-polynomial exact solutions by using lie point symmetry‎. ‎we demonstrate the generation of such polynomial through the medium of the group theoretical properties of the equation‎. ‎a generalized procedure for polynomial solution is pr...

Journal: :iranian journal of mathematical chemistry 2012
m. ghorbani m. songhori

the omega polynomial(x) was recently proposed by diudea, based on the length of stripsin given graph g. the sadhana polynomial has been defined to evaluate the sadhana index ofa molecular graph. the pi polynomial is another molecular descriptor. in this paper wecompute these three polynomials for some infinite classes of nanostructures.

Journal: :bulletin of the iranian mathematical society 0
h. s. kim department of mathematics‎, ‎research institute for natural sciences‎, ‎hanyang university‎, ‎seoul 04763‎, ‎korea. p. j. allen department of mathematics‎, ‎university of alabama‎, ‎tuscaloosa‎, ‎al 35487-0350‎, ‎usa. j. neggers department of mathematics‎, ‎university of alabama‎, ‎tuscaloosa‎, ‎al 35487-0350‎, ‎usa.

in this paper, we show how certain metabelian groups can be found within polynomial evaluation groupoids. we show that every finite abelian group can beobtained as a polynomial evaluation groupoid.

Journal: :Canadian journal of public health = Revue canadienne de sante publique 2016
Andrew W Tu Louise C Mâsse Scott A Lear Carolyn C Gotay Chris G Richardson

OBJECTIVE Understanding the mechanisms by which neighbourhood environments influence childhood obesity is needed to facilitate the development of prevention strategies. The objective of this cross-sectional study was to identify the distinct types of neighbourhoods in which Canadian children reside and examine the extent to which physical activity and sedentary behaviour mediate the relationshi...

2009
Pierre Tarrès

We generalize a result from Volkov (2001,[21]) and prove that, on an arbitrary graph of bounded degree (G, ∼) and for any symmetric reinforcement matrix a = (a i,j) i∼j , the vertex-reinforced random walk (VRRW) eventually localizes with positive probability on subsets which consist of a complete d-partite subgraph plus its outer boundary. We first show that, in general, any stable equilibrium ...

Journal: :Social science & medicine 2004
L J Lori J Curtis M D Martin D Dooley S A Shelley A Phipps

In this paper, we use the Canadian National Longitudinal Survey of Children and Youth data to examine the links between child well-being and neighbourhood 'quality.' This study adds to the literature by (i) investigating the relationship between neighbourhood quality and child health, (ii) by utilizing subjective assessments by individuals familiar with the neighbourhood (i.e., the survey respo...

Journal: :IACR Cryptology ePrint Archive 2015
Jimmy Jose Dipanwita Roy Chowdhury

Three-neighbourhood Cellular Automata (CA) are widely studied and accepted as suitable cryptographic primitive. Rule 30, a 3-neighbourhood CA rule, was proposed as an ideal candidate for cryptographic primitive by Wolfram. However, rule 30 was shown to be weak against Meier-Staffelbach attack [7]. The cryptographic properties like diffusion and randomness increase with increase in neighbourhood...

Journal: :Journal of Graph Theory 2011
Tsai-Lien Wong Xuding Zhu

A graph G = (V, E) is called (k, k′)-total weight choosable if the following holds: For any total list assignment L which assigns to each vertex x a set L(x) of k real numbers, and assigns to each edge e a set L(e) of k′ real numbers, there is a mapping f : V ∪ E → R such that f(y) ∈ L(y) for any y ∈ V ∪ E and for any two adjacent vertices x, x′, ∑ e∈E(x) f(e)+f(x) 6= ∑ e∈E(x′) f(e)+f(x ′). We ...

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