On summation processes of Fourier expansions in Banach spaces, I. Comparison theorems

Classical expansions and their relation to conjugate harmonic functions

Benjamin Muckenhoupt, E. M. Stein · Transactions of the American Mathematical Society · 1965 · 310 citations · Full text

Classical Expansions, Harmonic Space, Functional Analysis

Mean Convergence of Expansions in Laguerre and Hermite Series

Richard Askey, Stephen Wainger · American Journal of Mathematics · 1965 · 229 citations

Spectral Theory, Fourier Analysis, Fourier Expansion +2

The mean convergence of orthogonal series. II

Harry Pollard · Transactions of the American Mathematical Society · 1948 · 97 citations

Spectral Theory, Engineering, Orthogonal Polynomial +4

Classical Expansions and Their Relation to Conjugate Harmonic Functions

Benjamin Muckenhoupt, E. M. Stein · Transactions of the American Mathematical Society · 1965 · 88 citations

Classical Expansions, Harmonic Space, Functional Analysis

Geometric theory of Banach spaces. Part I. The theory of basis and minimal systems

Vitali Milman · Russian Mathematical Surveys · 1970 · 50 citations

Topological Properties, Banach Spaces, Infinite Dimensional Analysis +11