# Pisot-Vijayaraghavan number

> English word · Noun

## Definitions
1. A real algebraic integer greater than 1 all of whose Galois conjugates are less than 1 in absolute value.

## Etymology
They became widely known after the publication of Charles Pisot's dissertation in 1938. Tirukkannapuram Vijayaraghavan continued their study in the 1940s.

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