In this paper, we study the geodesic motion in spacetime of a SU(2)-colored (A)dS black hole conformal gravity, and also investigate features, such as light spheres horizons. Moreover, derive analytical solutions for equation test particles rays using Weierstrass elliptic Kleinian sigma functions. Depending on particle energy levels angular momentums, classify equations. Furthermore, several ex...

Recent studies of impinging jet flows have shown that momentum exchange and heat transfer can be significantly improved if the jet flow is pulsed (Zumbrunnen, 1996). Moreover, when the jet holes are elliptical, jet free surfaces are formed into a helical structure. Upon pulsating the jet flow, the helical structure rotates and a strong twisting action can be imparted where the jet strikes a sur...

Abstract. The mathematical model for semiconductor devices in three space dimensions are numerically discretized. The system consists of three quasi-linear partial differential equations about three physical variables: the electrostatic potential, the electron concentration and the hole concentration. We use standard mixed finite element method to approximate the elliptic electrostatic potentia...

The longitudinal and transverse coupling impedances of a small discontinuity on the accelerator chamber wall can be expressed in terms of the electric and magnetic polarizabil-ities of the discontinuity. The polarizabilities are geometrical factors and can be found by solving a static (electric or magnetic) problem. However, they are known in the explicit analytical form only for a few simple-s...

Elliptic problems in a two-dimensional domain containing one or several small holes are studied asymptotically in the limit of small hole radius ". As a result of the perturbation , the asymptotic solution to this class of problems contains an innnite logarithmic expansion in powers of ?1= log ". A hybrid asymptotic-numerical technique is used to sum these innnite logarithmic expansions and to ...

We explore the bubble spacetimes which can be obtained from double analytic continuations of static and rotating black holes in anti-de Sitter space. In particular, we find that rotating black holes with elliptic horizon lead to bubble spacetimes only in dimension greater than five. For dimension greater than seven, the topology of the bubble can be non-spherical. However, a bubble spacetime is...

Abstract We present closed-form solutions for the generic class of plunging geodesics in extended Kerr spacetime using Boyer–Lindquist coordinates. also specialise to case test particles from innermost precessing stable circular orbit (ISSO) and unstable spherical orbits. find these form elementary Jacobi elliptic functions parameterised by Mino time. In particular, we demonstrate that ISSO can...

We first discuss the relationship between the SL(2;R)/U(1) supercoset and N = 2 Liouville theory and make a precise correspondence between their representations. We shall show that the discrete unitary representations of SL(2;R)/U(1) theory correspond exactly to those massless representations of N = 2 Liouville theory which are closed under modular transformations and studied in our previous wo...

In this paper, we investigate the geodesic motion of massive and massless test particles in vicinity a black hole space-time surrounded by perfect fluid (quintessence, dust, radiation, cosmological constant phantom) Rastall theory. We obtain full set analytical solutions equation hole. For all cases fluid, consider some different values coupling $k\lambda$ so that equations have integer powers ...