This paper considers the performance of four channel identi cation techniques for code division multiple access (CDMA) antenna array receivers. These techniques are based on the assumption that the interference is spatially white: they provide a spatial \matched lter" solution. Perturbation formulae are presented for estimating the attainable signal to interference and noise ratios (SINR) for t...

A summary is presented of the most recent matrix elements for massless 2→ 2 scattering processes calculated at two loops in QCD perturbation theory together with a brief review on the calculational methods and techniques used.

The study of the c$k$-fusions frames shows that the emphasis on the measure spaces introduces a new idea, although some similar properties with the discrete case are raised. Moreover, due to the nature of measure spaces, we have to use new techniques for new results. Especially, the topic of the dual of frames  which is important for frame applications, have been specified  completely for the c...

In this paper we consider the global and local stability and instability of solutions of a scalar nonlinear differential equation with non–negative solutions. The differential equation is a perturbed version of a globally stable autonomous equation with unique zero equilibrium where the perturbation is additive and independent of the state. It is assumed that the restoring force is asymptotical...

Many organizations publish anonymous medical data for sociology research, health research, education and other useful studies. Although attributes that clearly identify individuals, such as name and certain personal identity numbers are removed, the combination of some other information, like the date of birth, gender, post-code etc. can still be used to identify an individual. Existing data pe...

We consider a nonlinear Dirichlet problem driven by the -Laplacian and with reaction consisting of singular term plus negative perturbation. Using regularization truncation comparison techniques, we show that has unique positive smooth solution.

In this work, the novel iterative transformation technique and homotopy perturbation are used to calculate fractional-order gas dynamics equation. technique, iteration method combined with Elzaki transformation. The current methods implemented four examples show efficacy validation of techniques. approximate solutions obtained by given techniques that accurate easy apply other linear nonlinear ...