Theorem

Apery's Theorem

Number Theory

Apery's theorem is a result in number theory, proved by Roger Apery, stating that Apery's constant, the value of the Riemann zeta function at 3, is irrational, meaning it cannot be written as a ratio of two integers. The theorem stands apart from the situation at even integers, where the zeta function's values were already known to be irrational multiples of powers of pi; whether the zeta function takes irrational values at other odd integers beyond 3 remains an open question, although such irrationality is conjectured.

Facts
Statement
The value of the Riemann zeta function at 3, Apery's constant, is irrational. Roger Apery announced the result in June 1978 in a talk titled Sur l'irrationalite de zeta(3). 1
Proof Year
1978 1
Classification
Statement Form
Characterization Theorem 1
Connections

Has Statement Form

In Branch

Source Apery's theorem (Wikipedia)

Principal Result Of

Source Roger Apéry (Wikipedia)

Proved By

Source Apery's Theorem (Wikipedia)
Sources
1. Apery's theorem (Wikipedia)
Wikimedia Foundation
  • History section, paragraph on the 1978 announcement
    However, in June 1978, Roger Apéry gave a talk titled "Sur l'irrationalité de ζ(3)."
  • In Branch: Number Theory, Lead paragraph
    In mathematics, Apéry's theorem is a result in number theory which states that Apéry's constant ζ(3) is irrational.
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Roger Apéry (Wikipedia)
Principal Result Of: Roger Apéry, Lead
Quote, Principal Result Of: Roger Apéry, Lead
most remembered for Apéry's theorem
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Apery's Theorem (Wikipedia)
Proved By: Roger Apéry, Lead sentence
Quote, Proved By: Roger Apéry, Lead sentence
The theorem is named after Roger Apéry.
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