👉 In mathematics, a "roseries" is a type of algebraic structure that was introduced by mathematician David Hilbert. It is named after his father, who named it after the German mathematician Georg Frobenius. A roseries is an ordered triple (a,b,c) where: - a and b are integers, - c is either 0 or -1. This means that if you have any two numbers in this structure, their sum will be zero. For example, for
