In mathematics, an algebraic torus, where a one dimensional torus is typically denoted by G m {\displaystyle \mathbf {G} _{\mathbf {m} }}, G m {\displaystyle \mathbb {G} _{m}}, or T {\displaystyle \mathbb {T} }, is a type of commutative affine algebraic group commonly found in projective algebraic geometry and toric geometry. Wikipedia