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Concept
Möbius Function
The
Möbius function
, denoted as μ(n), is an important multiplicative function in
number theory
that plays a crucial role in the
inversion of the Dirichlet convolution
. It is defined to be 0 if n has a
squared prime factor
, 1 if n is a product of an
even number of distinct primes
, and -1 if n is a product of an
odd number of distinct primes
.
Relevant Degrees
Number Theory 70%
Algebra 30%
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