## A note on Riesz potentials.(English)Zbl 0336.46038

### MSC:

 46E35 Sobolev spaces and other spaces of “smooth” functions, embedding theorems, trace theorems 46E30 Spaces of measurable functions ($$L^p$$-spaces, Orlicz spaces, Köthe function spaces, Lorentz spaces, rearrangement invariant spaces, ideal spaces, etc.) 31B15 Potentials and capacities, extremal length and related notions in higher dimensions
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