Resumen de Report on twisted sums of Banach spaces

Félix Cabello Sánchez, Jesús María Fernández Castillo

• This note is to report some of the advances obtained as a follow-up of the book [2] on the topic of twisted sums of Banach spaces. Since this announcement is no longer enough to contain the theory being developed, we submit the interested reader to [2] and to [1], where full details and proofs shall appear.