👉 The term "exteriorisation" refers to a process in mathematics, particularly algebraic geometry, where a polynomial equation is transformed into an equivalent equation that has only non-zero coefficients in its domain. This transformation is often used in solving polynomial equations with complex roots or in proving certain properties of the roots of such polynomials. In more technical terms, "exteriorisation" is typically associated with the process of performing a change of variables to eliminate some variable from an equation that contains a polynomial in one
