In a recent paper by J.Ren et al.(2012), a novel computer virus propagation model under the effect of the antivirus ability in a real network is established.The analysis there only partially uncovers the dynamics behaviors of virus spread over the network in the case where around bifurcation is local.In the present paper, by mathematical analysis,

In a consequence of the perpetual changes in the world of fashion, which can be explained by the introduction of new tendencies, materials and designers, the vocabulary that describes clothing enlarges by the internal means of the language and with the help of lexical borrowing.The article considers the characteristic usage of terms-eponyms for clo

This paper derives the statistical properties of a two-step approach to estimating multivariate rotated GARCH-BEKK (RBEKK) models.From the definition of RBEKK, the unconditional covariance matrix is estimated in the first step to rotate the observed variables in order to have the identity matrix for its sample covariance matrix.In the second step,

The increasing popularity and prevalence of Internet of Things (IoT) applications have led to the widespread use of IoT devices.These devices gather information from their environment and send it across a network.IoT devices are unreliable due to their susceptibility to defect that arise intentionally or spontaneously.IoT devices must be dependable