Beitraege zur Algebra und Geometrie Contributions to Algebra and Geometry Volume 34 (1993), No. 2, 233-243. The Fundamental Equations of Conformal Submersions Liviu Ornea, Giuliano Romani Abstract. The purpose of this note is to establish the fundamental equations of a conformal submersion; they are the analogue of the fundamental equations of Riemannian submersions as found by B.\ O'Neill. Our method consists in attaching to each class of conformal submersion a unique Riemannian submersion, then, by means of appropriate projectors, taking the conformal invariant components of its fundamental equations.