Spread of the virus can also occur between cities, countries and continents including the spread of H1N1 pandemic in 2009, the virus H7N9 that once plagued the plains of China, Virus Ebolla 2014 outbreak in the peninsula mainland West Africa, In this paper Mathematical model is constructed based on Metapopulation in 2 Region are connected by three tracks that do not intersect, therefore displacement individually in each region will not move trajectory, movement of individual populations between the Region is influenced by the density function Kernel Exponential and Laplace so Model Metapopulation shaped Equation System differential Partial-Integral loading the second region, stability and persistence analysis conducted through the basic reproduction number and Lipschitz constant showed that the analysis so that the system can be done through a model of each region’s to subsystem and system stability and persistence of the population affected by the virus and infected susceptible to the limited and quite large.

Hugelschaffer’s egg-shaped curve is egg-shaped curve that is constructed by two non-concentric circles using Newton’s transformation known as hyperbolism. This study has goals to construct the egg-shaped surface equations using Hugelschafer’s egg-shaped curve that is rotated on x-axis, y-axis and z-axis; to get the volume formula of the egg-shaped solid and the egg-shaped surface area and also to visualize the egg-shaped surface equations using GeoGebra. Hugelschaffer’s egg-shaped curve is selected because its equation is simple. The procedures of the construction of the egg-shaped surface equations are done by drawing the curve on xy-plane and xz-plane, then it is rotated on axes of the coordinate. Whereas, the volume formula of the egg-shaped solid is gotten by using the disk method of the volume integral. The egg-shaped surface area is attained by using the integral of surface area. Visualisation of the egg-shaped surface equations are done by choosing vary of parameter values of the equations that aims to know the effect of the parameter values with the shaped surface.

The application of the concept of fluid is often used to solve problems in the daily life. One of them is the problem of fluid around an elliptical cylinder. This study aims to solve the problems of the fluid around two elliptical cylinder configuration with side-by-side using the Navier-Stokes equations. Navier-Stokes equations-incompressible, viscous and unsteadyare solved using finite difference method staggered grid and SIMPLE (Semi Implicit Method for Pressure-Linked Equation) algorithms. Finite difference method is used to complete the grid arrangement, whereas the SIMPLE algorithm is used to obtain components of velocity and pressure value. Results of this study are the pressure value based on fluid flow profile and a mathematical model which received an elliptical cylinder pressure. Profile of fluid flow is simulated by varying the Reynolds number of 100, 1000, 7000, and 10000 as well as variations in the distance between the cylinder with a ratio of 2 ≤ S/a ≤ 6 where L is the distance between the cylinder and a is the minor axis of the cylinder ellipse. Then the pressure is calculated based on the value of the received cylinder pressure components. After obtaining the pressure value, then we create a mathematical model of the stresses imposed on the elliptical cylinder.

This paper discussed normed, cone normed, 2-normed, and cone 2-normed spaces. Then constructed some orthogonalities in cone 2-normed spaces, especially for ℓ 2 space.

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