Ulam’s Type Stability of Involutional-Exponential Functional Equations

Orthogonal stability of mixed type additive and cubic functional equations

In this paper, we consider orthogonal stability of mixed type additive and cubic functional equation of the form $$f(2x+y)+f(2x-y)-f(4x)=2f (x+y)+2f(x-y)-8f(2x) +10f(x)-2f(-x),$$ with $xbot y$, where $bot$  is orthogonality in the sense of Ratz.

Exponential stability for a class of functional differential equations

orthogonal stability of mixed type additive and cubic functional equations

in this paper, we consider orthogonal stability of mixed type additive and cubic functional equation of the form $$f(2x+y)+f(2x-y)-f(4x)=2f (x+y)+2f(x-y)-8f(2x) +10f(x)-2f(-x),$$ with $xbot y$, where $bot$  is orthogonality in the sense of ratz.

Razumikhin-type Theorems on Exponential Stability of Neutral Stochastic Functional Differential Equations

Recently, we initiated in [Systems Control Lett., 26 (1995), pp. 245–251] the study of exponential stability of neutral stochastic functional differential equations, and in this paper, we shall further our study in this area. We should emphasize that the main technique employed in this paper is the well-known Razumikhin argument and is completely different from those used in our previous paper ...

Razumikhin Type Theorems on Exponential Stability of Neutral Stochastic Functional Diierential Equations

Recently we initiated in 11] the study of exponential stability of neutral stochastic functional diierential equations and in this paper we shall further our study in this area. We should emphasize that the main technique employed in this paper is the well-known Razumikhin argument and is completely diierent from those used in our previous paper 11]. The results obtained in 11] can only be appl...