We construct static and time dependent exact soliton solutions for a theory of scalar fields taking values on a wide class of two dimensional target spaces, and defined on the four dimensional space-time S 3 × IR. The construction is based on an ansatz built out of special coordinates on S 3. For the case where the target space is the sphere S 2 , the infinite set of solutions have non-trivial ...

Let S be an orientable, finite type surface with negative Euler characteristic. The augmented moduli space of convex real projective structures on was first defined and topologized by the author. In this article, we give explicit description topology using coordinates. More precisely, given every point in space, find continuous coordinates quotient a suitable open neighborhood about subgroup ma...

We consider canonical/Weyl-Moyal type noncommutative (NC) spaces with rectilinear coordinates. Motivated by the analogy of formalism quantum mechanical harmonic oscillator problem in phase-space that canonical-type NC 2-D space, and noting square length latter case is analogous to Hamiltonian former case, we arrive at conclusion area are quantized such an if expressed entirely terms length. ext...

background : the age standardized incidence rates of esophageal cancer in women and men in iran have the fifth and eighth ranks, respectively. due to the high incidence rate of esophageal cancer and the necessity of knowledge of its geographical distribution, the incidence of this cancer was mapped at province and county levels in the present study. methods: the study population of this empiric...

in this paper, using a one-dimensional simulation model, the reforming process of sour gas, i.e. ch4, co2, and h2s, to the various charged particles and syngas in a dielectric barrier discharge (dbd) reactor is studied. an electric field is applied across the reactor radius, and thus a non-thermal plasma discharge is formed within the reactor. based on the space-time coupled finite element meth...