Acta Mathematica · 1987 · 202 citations · 11 references
A singular integral operator is initially defined as a mapping from Co(R a) to its dual. In other words it is defined by a bilinear form on [C~0(Rd)] 2. In the next definition we
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Hp spaces of several variables
Charles Fefferman, E. M. Stein · Acta Mathematica · 1972 · 2.8K citations · Full text