A general formula is developed which gives the "best" approximation for any linear functional on the Hardy space H 2. Some "best" approximations are given for interpolation, differentiation, and ...
https://doi.org/10.4169/math.mag.85.3.211 • https://www.jstor.org/stable/10.4169/math.mag.85.3.211 Copy URL Summary We prove the classical integration-by-parts ...
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