Nigel Kalton was an extraordinary mathematician and an important, influential source of inspiration for the Banext group at Extremadura. In May 2026, it will be twenty years since the fabulous Banach Spaces and their Applications in Analysis conference in honor of Nigel’s 60th birthday, held at Miami University, Oxford, Ohio; and eleven since its follow-up at the CIRM in Luminy. Following that tradition, the research group in Theory of Banach Spaces (Banext), with the support of the Institute of Mathematics of the University of Extremadura (IMUEX) and the Department of Mathematics, organizes a workshop focused on Banach space theory and related areas that will take place at Badajoz from Tuesday, May 19 until Friday, May 22, 2026. More information about this workshop can be found at
