On the behavior of holomorphic functions on A-compact sets

LASSALLE, SILVIA; TURCO, PABLO

Congreso; Complex approximation and bounded holomorphic functions; 2018

In this talk we study the behavior of holomorphic mappings on A-compact sets. Motivated by the recent work of Aron, Çalişkan, García and Maestre (2016), we give several conditions (on the holomorphic mappings and on the λ-Banach operator ideal A) under which A-compact sets are preserved. Appealing to the notion of tensor stability for operator ideals, we first address the question in the polynomial setting. Then, we define a radius of A-compactification that permits us to tackle the analytic case. Our approach, for instance, allows us to show that the image of any (p, r)-compact set under any holomorphic function (defined on any open set of a Banach space) is again (p, r)-compact.