At Museo Casa Natal de Cervantes (the author of Don Quixote), Alcala in Spain
1) Banach lattices, Banach function spaces (as well as their noncommutative analogues), and their applications.
2) Geometry of Banach spaces (e.g. Daugavet property, diameter two properties, smoothness).
3) Lineability and spaceability problems on Banach spaces.
CV: CV
Fun fact: My mathgenealogy
Research profile: Google Scholar, Researchgate, MathSciNet