Butzer, P.L., and Dickmeis, W.. "On the Sharpness of Non-Optimal Approximation for Semigroup Operators.." Manuscripta mathematica 51 (1985): 243-252. <http://eudml.org/doc/155073>.
@article{Butzer1985, author = {Butzer, P.L., Dickmeis, W.}, journal = {Manuscripta mathematica}, keywords = {rate of approximation; functional analytic approach; semigroups operators; Cesàro means; resolvent operators}, pages = {243-252}, title = {On the Sharpness of Non-Optimal Approximation for Semigroup Operators.}, url = {http://eudml.org/doc/155073}, volume = {51}, year = {1985}, }
TY - JOUR AU - Butzer, P.L. AU - Dickmeis, W. TI - On the Sharpness of Non-Optimal Approximation for Semigroup Operators. JO - Manuscripta mathematica PY - 1985 VL - 51 SP - 243 EP - 252 KW - rate of approximation; functional analytic approach; semigroups operators; Cesàro means; resolvent operators UR - http://eudml.org/doc/155073 ER -