the aim of this short note is to introduce the concepts of prime and semiprime ideals in ordered ag-groupoids with left identity. these concepts are related to the concepts of quasi-prime and quasi-semiprime ideals, play an important role in studying the structure of ordered ag-groupoids, so it seems to be interesting to study them.

let r be a ring,  be an endomorphism of r and mr be a -rigid module. amodule mr is called quasi-baer if the right annihilator of a principal submodule of r isgenerated by an idempotent. it is shown that an r-module mr is a quasi-baer module if andonly if m[[x]] is a quasi-baer module over the skew power series ring r[[x; ]].

In this work, the spatial resolution of two quantum well intermixing processes has been obtained using spatially resolved photoluminescence. The processes investigated are impurity-free vacancy disordering using SiO2/SiO2:P caps and sputtered silica induced intermixing. These studies aimed to choose a suitable intermixing technology to realize the band gap gratings for domain disordering quasi-...

Despite significant research on state-space reductions, the poor scalability of model checking for reasoning about behavioral models of large, complex systems remains the chief obstacle to its broad acceptance. One strategy for making further progress is to exploit characteristics of classes of systems to develop domain-specific reductions. In this paper, we identify a structural property of sy...

The parameter domain for which the quasi-steady state assumption is valid can be considerably extended merely by a simple change of variable. This is demonstrated for a variety of biologically significant examples taken from enzyme kinetics, immunology and ecology.

Let Ω be a bounded domain in R with a Lipschitz continuous boundary ∂Ω and outward unit normal vector n. We consider the following quasi-static Maxwell’s system with a nonlocal field-dependent source term,

The purpose of this note is to report the main results obtained by the authors in [8] and [9], respectively. The notion of a Smyth completable quasi-uniform space provides an efficient tool to give a topological foundation for many kinds of spaces which arise naturally in Theoretical Computer Science; in particular in Domain Theory (e.g. [5], [13] and [14]) and Complexity Theory (e.g. [9] and [...

A 2D analytical method for magnetic vector potential calculation in inner rotor surface mounted and surface inset permanent magnet machines considering slotting effects, magnetization orientation and winding layout has been proposed in this paper. The analytical method is based on the resolution of Laplace and Poisson equations as well as Maxwell equation in quasi- Cartesian coordinate by using...

purpose: to determine the effect of induced myopia and hyperopia using soft contact lenses on optic disc parameters measured by fourier domain optical coherence tomography (fd-oct) in emmetropic persons. methods: in a quasi-experimental self controlled study, 57 normal emmetropic participants 18-42 years of age were studied. each subject underwent a complete ophthalmic examinations including me...

We study a random process with reinforcement, which evolves following the dynamics of given diffusion in bounded domain and is resampled according to its occupation measure when it reaches boundary. show that converges unique quasi-stationary distribution absorbed at boundary domain. Our proofs use recent results theory distributions stochastic approximation techniques.