O‘zbekiston matematika jurnali 70-том 2-нөмір (2026) · 42-48-беттер
Eta quotients of level $20$ and weight $1$
Bouchikhi, A., Mezroui, S.
Аңдатпа
We find all the eta quotients in the spaces $M_{1}\left(\Gamma_{0}(20), \left(\frac{d}{*}\right)\right)$ with $d = -4, -20$ of modular forms, and we determine their Fourier coefficients, where $\left(\frac{d}{*}\right)$ is the Legendre-Jacobi-Kronecker symbol in the group of Dirichlet characters modulo $20$ with values in the rational field $\mathbb{Q}$.
Eta quotientsModular formsFourier coefficients of cusp formseta function
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