On the mixed $\left({\ell }_1,{\ell }_2\right)$-Littlewood inequality for real scalars and applications

Daniel Pellegrino, Diana M. Serrano-Rodriguez

In this paper we obtain the sharp estimates for the mixed $\left({\ell }_1,{\ell }_2\right)$-Littlewood inequality for real scalars with exponents $\left(2,1,2,\mathrm{2....},2\right).$ T…