# Lefschetz fixed-point theorem

> English word · Proper noun

## Definitions
1. A formula that counts the fixed points of a continuous mapping from a compact topological space X to itself by means of traces of the induced mappings on the homology groups of X.

## Etymology
Named after Solomon Lefschetz, who first stated it in 1926.

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