Daza Urbano, David Fernando
(Universidad del CaucaFacultad de Ciencias Naturales, Exactas y de la EducaciónDoctorado en Ciencias Matemáticas, 2022-09)
A subset A of an abelian group Γ (written additively) is a B2 set in Γ if all the sums a_1 + a_2, with a_1 and a_2 in A, are different. In this thesis we consider three research problems that arose when we study Singer type ...