 Fundamental representation

The fundamental representation associated with a fundamental weight ${\omega }_i$ is the irreducible highest-weight representation $V({\omega }_i)$.

In the context of particle physics, particularly in the framework of quantum field theory and the Standard Model, the term "fundamental representation" often refers to the simplest representation of a group associated with gauge symmetries. Groups like SU(2), SU(3), and U(1) are crucial for describing fundamental interactions.