# Harnack's curve theorem

> English word · Proper noun

## Definitions
1. In real algebraic geometry, a theorem that describes the possible numbers of connected components that an algebraic curve can have, in terms of the degree of the curve.

## Etymology
Named after Axel Harnack.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/harnack-s-curve-theorem