In most formulas, one variable is by itself on the left hand side (LHS) of the formula. This variable is the subject of the formula. Changing the subject of the formula is a process of rearranging a ...

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The oldest mathematics journal in the Western Hemisphere in continuous publication, the American Journal of Mathematics ranks as one of the most respected and celebrated journals in its field.

Helping with homework used to be so easy. Back in the day, little ones sidled up to mom or dad and asked, “How do I do this?” It was all about spelling “ sky” or telling them, “Well, sweetie, if you ...

Let 𝐾 be a number field with algebraic closure K¯, and let 𝑆 be a finite set of places of 𝐾 containing all the infinite ones. Let Γ₀ be a finitely generated subgroup of Gm(K¯), and let Γ⊂Gm(K¯) be ...