👉 In mathematics, a "concurrence" is a mathematical concept in algebraic geometry and complex analysis. It refers to the relationship between two curves or surfaces in projective space which are defined by equations that are equivalent under an equivalence relation. These curves or surfaces are said to be "concurant" if they have the same intersection number with a common point, called the concurrence point. This concept is important in algebraic geometry because it allows us to study how two curves intersect in projective