
THEMATIC PROGRAMS 

August 17, 2018  
Numerical and Computational Challenges in Science and Engineering Program LECTURE

This thesis presents numerical methods for the solution of general linear fourthorder boundary value problems in one dimension. The methods are based on quartic splines and the collocation discretization methodology with the midpoints of a uniform partition being the collocation points. The standard quarticspline collocation method is second order. Two sixthorder quarticspline collocation methods are developed and analyzed. They are both based on a high order perturbation of the differential equation and boundary conditions operators. The error analysis follows the Green's function approach and
shows that both methods exhibit optimal order of convergence.
That is, they are locally sixth order on the gridpoints and midpoints,
and fifth order globally. The properties of the matrices arising
from a restricted class of problems are studied. Analytic formulae
for the 
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