The first simultaneous sign change and non-vanishing of Hecke eigenvalues of newforms
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DOI: 10.1016/j.jnt.2018.12.002
Abstract: Let $f$ and $g$ be two distinct newforms with weights $k_1, k_2 \ge 2$ and square-free levels $N_1, N_2 \ge 1$ respectively and which are normalized Hecke eigenforms. Further, for $n\ge 1$, let $ a_f(n)$… read more here.
Keywords: hecke; sequence; sign change; non vanishing ... See more keywords