# Lax pair

> English word · Noun

## Definitions
1. In the theory of integrable systems, a pair of time-dependent matrices or operators that satisfy a corresponding differential equation, called the Lax equation.

## Etymology
They were introduced by Peter Lax.

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