A short note on inadmissible coefficients of weight $2$ and $2k+1$ newforms

Malik Amir, Andreas Hatziiliou

Let $f(z)=q+{\sum }_{n\ge 2}a(n)q^n$ be a weight $k$ normalized newform with integer coefficients and trivial residual mod 2 Galois representation. We extend the results of Amir and…