We prove a reiteration theorem for interpolationmethods defined by means of polygons, and a Wolff theorem for the case when the polygon has 3 or 4 vertices. In particular, we establish a Wolff theorem for Fernandez' spaces, which settles a problem left over in [5].
@article{bwmeta1.element.bwnjournal-article-smv102i3p239bwm, author = {Fernando Cobos and Pedro Fernandez-Martinez}, title = {Reiteration and a Wolff theorem for interpolation methods defined by means of polygons}, journal = {Studia Mathematica}, volume = {103}, year = {1992}, pages = {239-256}, zbl = {0812.46011}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv102i3p239bwm} }
Cobos, Fernando; Fernandez-Martinez, Pedro. Reiteration and a Wolff theorem for interpolation methods defined by means of polygons. Studia Mathematica, Tome 103 (1992) pp. 239-256. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv102i3p239bwm/
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