Given a nonempty compact connected subset $X\subset {\Bbb S}^{2}$ with complement a simply-connected open subset $\Omega \subset {\Bbb S}^{2}$, let Dome(Ω) be the ...

SummaryThe authors exhibit two differentiable functions f and g for which the function f gᵣ and fgᵣ are not integrable, so that the integration by parts formula does not apply. Journal Information ...