Lorenzo Sillari

activity

20202026

J

-invariant cohomologies on almost complex manifolds

6 citations · 17 across the 14 of their papers we have counts for

collaborators

Showing math.NTShow all

1 paper · 1 filter

math.NT2021

On the minimal number of solutions of the equation $ϕ (n + k) = M ϕ (n)$ , $M = 1$ , $2$

Matteo Ferrari, Lorenzo Sillari

We fix a positive integer $k$ and look for solutions of the equations $ϕ (n + k) = ϕ (n)$ and $ϕ (n + k) = 2 ϕ (n)$ . We prove that Fermat primes can be used to build five solutions for th…

On the minimal number of solutions of the equation ϕ(n+k)=Mϕ(n), M=1, 2

On the minimal number of solutions of the equation $ϕ (n + k) = M ϕ (n)$ , $M = 1$ , $2$