MathGloss

Let WW and VV be vector spaces over the same ground field FF. A function T:VWT: V \to W is a linear transformation if for all v,wVv,w \in V and α,βF\alpha,\beta \in F, T(αv+βw)=αT(v)+βT(w).T(\alpha v+\beta w) = \alpha T(v) + \beta T(w).

This is the correct notion for a homomorphism of vector spaces. If a linear transformation is bijective, then it is an isomorphism of vector spaces.

Wikidata ID: Q207643