Algebroid
# Algebroid

In mathematics, algebroid may refer to several distinct notions, which nevertheless all arise from generalising certain aspects of the theory of algebras or Lie algebras.

* Algebroid branch, a formal power series branch of an algebraic curve
* Algebroid cohomology
* Algebroid multifunction
* Courant algebroid, an object generalising Lie bialgebroids
* Lie algebroid, the infinitesimal counterpart of Lie groupoids
   * Atiyah algebroid, a fundamental example of a Lie algebroid associated to a principal bundle
* R-algebroid, a categorical construction associated to groupoids
