The portfolio selection problem deals with how to form a satisfying portfolio. It is difficult to decide which assets should be selected because of the uncertainty on their returns. On the other hand, the increased volatility ...

In this paper symmetry expansions for Black-Scholes equation are studied. Differently then the other studies in the literature for Black-Scholes equation, we expanded the equation into a parametric form by adding a coefficient ...

In this paper, we consider the generalized shift operator, generated by the Bessel differential operator, defining the fractional integrals generated by the generalized shift operator, their local estimations are obtained.

G-smooth curves and surfaces are developed to span a given logically cuboid distribution of nodes. Given appropriate data, they locally reconstruct the curves and surfaces of spherical or cylindrical coordinates. Thus, if ...

In this study LS-SVM method is applied for fuzzy nonlinear regression whose input and output are fuzzy numbers. The method solves any problem of classification or regression via transforming to a quadratic problem without ...

Mathematical model for the impact of pressure drop on the human body has been investigated in the present studies. The studies has been aimed at personnel (army and mountaineer) who would be prone for higher altitude effect ...

Finance is the corner stone of the free enterprise system. Good financial management is therefore vitally important to the economic health of business firms, and thus the nation and the world. The field is relatively ...

A stress-strength model defines life of a component which has strength X and is subjected to stress Y. In this paper, we consider the estimation problem of R=P(Y<X) when X ~ Gompertz(c,??) and Y ~ Gompertz(c,??) are ...

A time series is a sequence of observations made periodically within time. For time series that are met in real situations, generally first of all linear time series models are conserned. This depends on the fact that by ...

We have studied heat and mass transfer in an unsteady MHD flow of an incompressible, electrically conducting, and viscous fluid. It is considered that the influence of the uniform magnetic field normal to the flow. Numerical ...