$\Omega$-bounds for the partial sums of some modified Dirichlet characters II

Marco Aymone, Ana Paula Chaves, Maria Eduarda Ramos

A modified Dirichlet character $f$ is a completely multiplicative function such that for some Dirichlet character $\chi$, $f(p)=\chi (p)$ for all but a finite number of primes $p\in S$, a…