Results 21 to 30 of about 627,001 (273)
Color-blind index in graphs of very low degree [PDF]
, 2015 Let $c:E(G)\to [k]$ be an edge-coloring of a graph $G$, not necessarily proper. For each vertex $v$, let $\bar{c}(v)=(a_1,\ldots,a_k)$, where $a_i$ is the number of edges incident to $v$ with color $i$.
Achlioptas +13 more
core +3 more sources
On a Total Version of 1-2-3 Conjecture
Discussiones Mathematicae Graph Theory, 2020 A total k-coloring of a graph G is a coloring of vertices and edges of G using colors of the set {1, . . . , k}. These colors can be used to distinguish adjacent vertices of G. There are many possibilities of such a distinction.
Baudon Olivier +5 more
doaj +1 more source
Rectangular Cavity Sensor for Distinguishing Between Normal and High-Drivability-Index Gasolines
IEEE Access, 2020 The Drivability Index (DI) of gasoline is a measure of fuel performance of engine operations. Therefore, distinguishing a gasoline of specific DI in advance is useful for improving engine efficiency and maintenance.
Chong Hyun Lee +2 more
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Social capital and immigrants' labour market performance [PDF]
, 2016 This paper analyses the role of social capital on immigrants’ labour market outcomes. We use the “principal component analysis” (PCA) to build an index of social networks and explore its impact on the probability of getting a job and on wage levels ...
Piracha, Matloob +2 more
core +1 more source
An Improved Upper Bound on Neighbor Expanded Sum Distinguishing Index
Discussiones Mathematicae Graph Theory, 2020 A total k-weighting f of a graph G is an assignment of integers from the set {1, . . . , k} to the vertices and edges of G. We say that f is neighbor expanded sum distinguishing, or NESD for short, if Σw∈N(v) (f(vw) + f(w)) differs from Σw∈N(u)(f(uw) + f(
Vučković Bojan
doaj +1 more source
Redshift Distortions as a Probe of Gravity [PDF]
, 1995 Redshift distortion measurements from galaxy surveys include sensitivity to the gravitational growth index distinguishing other theories from Einstein gravity.
Linder, Eric V.
core +1 more source
Anthropometric discriminators of type 2 diabetes among White and Black American adults [PDF]
, 2016 BACKGROUND: The aim of the present study was to determine the best anthropometric discriminators of type 2 diabetes mellitus (T2DM) among White and Black males and females in a large US sample.
Gachupin, Francine C +5 more
core +2 more sources
The distinguishing number and the distinguishing index of co-normal product of two graphs
Ratio Mathematica, 2019 The distinguishing number (index) $D(G)$ ($D'(G)$) of a graph $G$ is the least integer $d$ such that $G$ has an vertex labeling (edge labeling) with $d$ labels that is preserved only by a trivial automorphism.
Saeid Alikhani, Samaneh Soltani
doaj +1 more source
Distinguishing number and distinguishing index of neighbourhood corona of two graphs
Contributions to Discrete Mathematics, 2019 The distinguishing number (index) $D(G)$ ($D'(G)$) of a graph $G$ is the least integer $d$ such that $G$ has an vertex labeling (edge labeling) with $d$ labels that is preserved only by a trivial automorphism. The neighbourhood corona of two graphs $G_1$ and $G_2$ is denoted by $G_1 \star G_2$ and is the graph obtained by taking one copy of ...
Alikhani, Saeid, Soltani, Samaneh
openaire +3 more sources
Exact and approximate symmetries for light propagation equations with higher order nonlinearity [PDF]
, 2010 For the first time exact analytical solutions to the eikonal equations in (1+1) dimensions with a refractive index being a saturated function of intensity are constructed.
Garcia, Martin E. +2 more
core +2 more sources