TY - JOUR ID - Auzinger2006 LB - Auzinger2006 AU - Auzinger, Winfried AU - Karner, Ernst AU - Koch, Othmar AU - Weinmüller, Ewa TI - Collocation methods for the solution of eigenvalue problems for singular ordinary differential equations ST - Collocation methods for the solution of eigenvalue problems for singular ordinary differential equations JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2006 VL - 26 IS - 2 SP - 229 EP - 241 DO - http://dx.doi.org/10.7494/OpMath.2006.26.2.229 UR - http://dx.doi.org/10.7494/OpMath.2006.26.2.229 AB - We demonstrate that eigenvalue problems for ordinary differential equations can be recast in a formulation suitable for the solution by polynomial collocation. It is shown that the well-posedness of the two formulations is equivalent in the regular as well as in the singular case. Thus, a collocation code equipped with asymptotically correct error estimation and adaptive mesh selection can be successfully applied to compute the eigenvalues and eigenfunctions efficiently and with reliable control of the accuracy. Numerical examples illustrate this claim. KW - polynomial collocation KW - singular boundary value problems KW - linear and nonlinear eigenvalue problems SN - 1232-9274 ER -