In arithmetic dynamics, an arboreal Galois representation is a continuous group homomorphism between the absolute Galois group of a field and the automorphism...

mathematics, a Galois module is a G-module, with G being the Galois group of some extension of fields. The term Galois representation is frequently used...

geometry Arithmetic topology Combinatorics and dynamical systems Arboreal Galois representation Silverman, Joseph H. (2007). The Arithmetic of Dynamical Systems...