Sadahisa Sakata

Global attractivity for a nonlinear difference equation with variable delay

Tadayuki Hara, Hideaki Matsunaga, Sadahisa Sakata, 2001 .

Stable Regions Represented by Time Delays (Dynamics of Functional Equations and Related Topics)

T. Hara, Sadahisa Sakata, 2002 .

On the uniform asymptotic stability for a linear integro-differential equation of Volterra type

T. Hara, Sadahisa Sakata, M. Funakubo, 2006 .

Stability Regions for Linear Differential Equations with Two Kinds of Time Lags

T. Hara, Sadahisa Sakata, 2004 .