A uniformly convergent spline difference scheme for a self-adjoint singular perturbation problem


Katarina Surla




For the problem: $-\varepsilon y''+q(x)y=f(x)$, $0<x<1$, $y(0)=a_0$, $y(1)=a_1$ the exponentially fitted spline difference scheme is derived. This scheme has the second order of uniform accuracy under some conditions on the functions $q(x)$ and $f(x)$.