Editing Dirichlet convolution (section)

==Related concepts==

The restriction of the divisors in the convolution to [[Unitary divisor|unitary]], [[Bi-unitary divisor|bi-unitary]] or infinitary divisors defines similar commutative operations which share many features with the Dirichlet convolution (existence of a Möbius inversion, persistence of multiplicativity, definitions of totients, Euler-type product formulas over associated primes, etc.).

Dirichlet convolution is a special case of the convolution multiplication for the [[incidence algebra]] of a  [[Partially ordered set|poset]], in this case the poset of positive integers ordered by divisibility.

The [[Dirichlet hyperbola method]] computes the summation of a convolution in terms of its functions and their summation functions.