Drinfeld Quasi-Modular Forms of Higher Level
Drinfeld Quasi-Modular Forms of Higher Level
We study the twofold structure of the vector space of Drinfeld quasi-modular forms for Hecke congruence subgroups. We provide representations as polynomials in the false Eisenstein series with coefficients in the space of Drinfeld modular forms, and as sums of hyperderivatives of Drinfeld modular forms (whenever possible). Moreover, we offer …