A direct derivation of the physical eigenvalue and eigenfunction for the three magnon bound state equation is given.

Replacive ordering can occur in an alloy in a continuous mode by the development and amplification of concentration waves of appropriate wave vectors, k. Such processes known as spinodal clustering (k∼〈000〉) and spinodal ordering (k defining the relevant superlattice structure) become...

There is mounting evidence of an increasing gender gap in computer education, which translates into a similar gap in the information technology workforce in the United States. This study investigates whether gender difference in computer usage is carried over to Internet usage. This paper...

For inferential analysis of spatial data, probability modelling in the form of a spatial stochastic process is often adopted. In the univariate case, a realization of the process is a surface over the region of interest. The specification of the process has implications for the smoothness of...

Manufacturers often offer trade promotions such as markdown allowances as incentives to retailers. These savings, if passed onto consumers in the form of lower retail prices, can stimulate consumer purchases and thus enhance the manufacturers' profits. Retailers, however, may not pass savings...

"Under the assumption of no unmeasured confounders, a large literature exists on methods that can be used to estimating average treatment effects (ATE) from observational data and that spans regression models, propensity score adjustments using stratification, weighting or regression and even...