← Back to search

Meaning of Dirichlet eta function | Babel Free

Noun CEFR C1

Definitions

The alternating sum of the Dirichlet series expansion of the Riemann zeta function:η(s)=∑ₙ₌₁ ᪲(-1)ⁿ⁻¹/nˢ=1/(1ˢ)-1/(2ˢ)+1/(3ˢ)-1/(4ˢ)+⋯.

CEFR level

C1

Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

Dirichlet problem Dirichlet process Dirichlet series Dirichlet's box principle Dirichlet's drawer principle Dirichlet's unit theorem