Shaimardan, S.; Shalgynbaeva, S.
(Bulletin of the Karaganda university - Mathematics, 2017)
We establish necessary and sufficient conditions the validity of the discrete Hardy-type inequality
(Sigma(infinity)(i=1)(Sigma(infinity)(j=1) a(i,j) f(j))(q) u(i)(q))(1/q) <= (Sigma(infinity)(i=1) f(i)(p)v(i)(p))(1/p) ...