Cobos Díaz, FernandoFernández-Martínez, PedroMartínez, Antón2023-06-202023-06-2019990010-0757https://hdl.handle.net/20.500.14352/58672This article deals with K- and J-spaces defined by means of polygons. First we establish some reiteration formulae involving the real method, and then we study the behaviour of weakly compact operators. We also show optimality of the weak compactness results.engjournal articlehttp://www.raco.cat/index.php/CollectaneaMathematica/article/view/56475http://www.springerlink.com/restricted access517.98Análisis funcional y teoría de operadores