ディリクレ級きゅう数すう

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Meanings

1

noun

Dirichlet series

mathematics

A mathematical series of the form Σ aₙ n⁻ˢ, named after Peter Gustav Lejeune Dirichlet. Used in analytic number theory.

class, rank, grade

数number, strength, fate

リーマンゼータ関かん数すう
The Riemann zeta function is a specific Dirichlet series where aₙ = 1 for all n.
級きゅう数すう
級数 is the general term for a series; ディリクレ級数 is a specific type of series.

From the name of the German mathematician Peter Gustav Lejeune Dirichlet (ディリクレ) + 級数 (series).