Paper detail

Lower bounds on the projective heights of algebraic points

If $α_1,\ldots,α_r$ are algebraic numbers such that $$N=\sum_{i=1}^rα_i \ne \sum_{i=1}^rα_i^{-1}$$ for some integer $N$, then a theorem of Beukers and Zagier gives the best possible lower bound on $$\sum_{i=1}^r\log h(α_i)$$ where $h$ denotes the Weil Height. We will extend this result to allow $N$ to be any totally real algebraic number. Our generalization includes a consequence of a theorem of Schinzel which bounds the height of a totally real algebraic integer.