Perturbed Robe’s restricted problem of 2+2 bodies when the primaries form a Roche ellipsoid-triaxial system

In this paper: The aim of this paper is to study the effect of perturbations in the Coriolis and centrifugal forces on the location and stability of the equilibrium solutions in the Robe’s restricted problem of 2+2...

On the stability of the triangular points in the relativistic R3BP with a bigger triaxial primary

Nakone Bello, Jagadish Singh

In this paper: This paper studies the motion of a third body (test particle) in the vicinity of the triangular points L4,5 by considering the more massive as a triaxial body in the frame work of the relativistic res...

Differential geometric structure of non-equilibrium dynamics in competition and predation: Finsler geometry and KCC theory

Kazuhito Yamasaki, Takahiro Yajima

In this paper: We considered the differential geometric structure of non-equilibrium dynamics in non-linear interactions, such as competition and predation, based on Kosambi-Cartan-Chern (KCC) theory. The stability...

Structure and characterization of ruled surfaces in Minkowski 3-space

Fatma Güler, Emîn Kasap

In this paper: In this paper, we consider non developable ruled surface with spacelike ruling, timelike ruling, respectively. We give the relations between the structure functions with the curvature and torsion of t...

A new problem of singular fractional differential equations

In this paper: In this paper, we introduce a new class of nonlinear singular frac­tional differential equations. We axe interested in the singularity by using the contraction mapping principle and Schauder fixed poi...

Seir epidemic model with two time delays

Tayebeh Waezizadeh

In this paper: In this paper we introduce the SEIR epidemic model with latent and infectious time delays, which are denoted by ω and τ respectively. As follows we consider two different cases, ω = 0 and ω ≠ 0 ≠ τ. S...