👉 In algebraic geometry, a morphism between two schemes is a continuous map such that for every open subset U of the base scheme S, there exists an open subset V of S such that f|_V = 1 and f|_U = id_S. A morphism between two varieties is a morphism between the coordinate rings of their underlying sets. In other words, it's a continuous map between schemes which preserves the structure of the variety.
