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Application of Mobius inversion in combinatorial problems

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DOI: 10.23977/jnca.2020.050104 | Downloads: 36 | Views: 428


Zehan Lin 1


1 Guangzhou University (Guangzhou, Guangdong 510006)

Corresponding Author

Zehan Lin


Mobius inversion plays a very important part in number theory mathematics and can be used to solve many combinatorial problems. For some functions f(n), if it is difficult to find its value directly, but it is easy to find the sum of its multiples or divisors as g(n), then the calculation can be simplified through Mobius inversion to obtain the value of f(n).In this article, we provide a method to use Mobius inversion to solve some combinatorial problems efficiently with computer calculation.


Mobius inversion, combinatorial mathematics, Number Theory


Zehan Lin. Application of Mobius inversion in combinatorial problems. Journal of Network Computing and Applications (2020) 5: 23-26. DOI:


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