4 citations · 16 across the 9 of their papers we have counts for
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About quasi-modular forms, differential operators and Rankin--Cohen algebras
Younes Nikdelan
We establish sufficient conditions, involving Rankin--Cohen (RC) brackets, under which certain combinations of meromorphic quasi-modular forms and their derivatives yield meromorph…
Ramanujan systems of Rankin-Cohen type and hyperbolic triangles
Gabriele Bogo, Younes Nikdelan
In the first part of the paper we characterize certain systems of first order nonlinear differential equations whose space of solutions is an -module.…
Ramanujan-type systems of nonlinear ODEs for and
Younes Nikdelan
This paper aims to introduce two systems of nonlinear ordinary differential equations whose solution components generate the graded algebra of quasi-modular forms on Hecke congruen…
Rankin-Cohen brackets for Calabi-Yau modular forms
Younes Nikdelan
For any positive integer , we introduce a quasi-homogeneous vector field of degree on a moduli space of enhanced Calabi-Yau -folds arising from…
Product formulas for weight two newforms
Hossein Movasati, Younes Nikdelan
For a weight two newform attached to an elliptic curve defined over rational numbers we write and we observe that for some…