Optimal L ∞ Error Estimates for Galerkin Approximations to Solutions of Two-Point Boundary Value Problems
Jim Jr. Douglas, Todd Dupont, Lars B. Wahlbin · Mathematics of Computation · 1975
Jim Douglas, Jr, Todd Dupont, Lars Wahlbin, Optimal $L_\infty$ Error Estimates for Galerkin Approximations to Solutions of Two-Point Boundary Value Problems, Mathematics of Computation, Vol. 29, No. 130 (Apr., 1975), pp. 475-483