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Hardy-Littlewood-Paley inequalities and Fourier multipliers on SU(2). (English) Zbl 1353.43009
The authors work within the representation theory of \(\mathrm{SU}(2)\), and formulate estimates relating functions with their Fourier coefficients: the \(\mathrm{SU}(2)\)-version of the Hardy-Littlewood and Paley inequalities and further extensions.

43A85 Harmonic analysis on homogeneous spaces
43A15 \(L^p\)-spaces and other function spaces on groups, semigroups, etc.
35S05 Pseudodifferential operators as generalizations of partial differential operators
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