Source: wikibot/function-field-scheme-theory
= Function field (scheme theory)
{wiki=Function_field_(scheme_theory)}
In scheme theory, a branch of algebraic geometry, the concept of a "function field" is a fundamental idea associated with the geometrical notion of a variety. Let's break it down: \#\#\# Definition 1. **Function Field**: The function field of a variety (or scheme) can be informally thought of as the "field of rational functions" on that variety.