Lebesgue space, weak derivative and Sobolev space (a) If 1lt;= rlt;= slt;= infinity , and k subset of Rn is bounded, show that Ls(k) subset of…

Q1. Lebesgue space, weak derivative and Sobolev space

(a) If 1<= r<= s<= infinity , and  k subset of

Rn is bounded, show that Ls(k) subset of Lr(k).