Pisot-Vijayaraghavan number

noun

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

Meanings

nounPisot-Vijayaraghavan number (plural Pisot-Vijayaraghavan numbers)

plural Pisot-Vijayaraghavan numbers

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

    Synonyms: Pisot number, PV number

Synonyms & antonyms

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

Origin

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

Full word history & related roots →
Cite this entry
APA

Pisot-Vijayaraghavan number. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Pisot-Vijayaraghavan%20number

MLA

“Pisot-Vijayaraghavan number.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Pisot-Vijayaraghavan%20number. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Pisot-Vijayaraghavan number,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Pisot-Vijayaraghavan%20number.

Source: Pisot-Vijayaraghavan number on Wiktionary, CC BY-SA 4.0.