Interpolation of operators when the extreme spaces are $L^{โ}$
Interpolation of operators when the extreme spaces are $L^{โ}$
Under some assumptions on the pair $(A_0,B_0)$, we study equivalence between interpolation properties of linear operators and monotonicity conditions for a pair (Y,Z) of rearrangement invariant quasi-Banach spaces when the extreme spaces of the interpolat