Dirichlet series
In
mathematics, a
Dirichlet series, one of a number of concepts named in honor of
Johann Peter Gustav Lejeune Dirichlet, is a
series of the form
The most famous of Dirichlet series is
which is the
Riemann zeta function.
Other Dirichlet series are:
where μ(
n) is the Möbius function,
where φ(
n) is the
totient function, and
where σ
a(
n) is the
divisor function.
See also