General theory.- Multiplier criteria for (C,?)-bounded expansions.- Particular summation methods.- Applications to particular expansions.
The Multiplier Problem. (Lecture Notes in Mathematics, 105)
Theory of Sobolev Multipliers With Applications to Differential and Integral Operators
Absolute Summability of Fourier Series and Orthogonal Series (Lecture Notes in Mathematics, 1067)
Fourier Analysis and Approximation of Functions
Tauberian Operators
Tauberian Remainder Theorems
On the Pointwise Convergence of Fourier Series
Lectures on Summability (Lecture Notes in Mathematics, 107)
Extreme Eigen Values of Toeplitz Operators (Lecture Notes in Mathematics, 618)
New Classes of Lp-Spaces (Lecture Notes in Mathematics, 889)