A novel approach for the numerical approximation to the solution of singularly perturbed differential-difference equations with small shifts. - Rakesh Ranjan; Hari Shankar Prasad (J. Appl. Math. Comput., 2021)

A novel exponentially fitted finite difference method for a class of 2nd order singularly perturbed boundary value problems with a simple turning point exhibiting twin boundary layers. - Rakesh Ranjan; Hari Shankar Prasad (J. Ambient Intell. Humaniz. Comput., 2022)