6 papers
Divisor moments of polynomials in Fourier coefficients of modular forms
Wonwoong Lee
We study higher moments of the divisor function evaluated at polynomial expressions in the Fourier coefficients of a non-CM newform. The logarithmic exponent appearing in our estim…
Divisor problems for restricted Fourier coefficients of modular forms
Yuk-Kam Lau, Wonwoong Lee
Let be the number of divisors of . We investigate the average value of for a positive integer and the -th Fourier coefficient of a cuspidal…
Moment of derivatives of L-functions for two distinct newforms
Seokhyun Choi, Beomho Kim, Hansol Kim +2
We establish an unconditional result concerning the asymptotic formula for the moment of derivatives of -functions over quadratic…
On the real zeros of depth 1 quasimodular forms
Bo-Hae Im, Wonwoong Lee
We discuss the critical points of modular forms, or more generally the zeros of quasimodular forms of depth for . In particular, we consider the deri…
Non-holomorphic Eisenstein series for certain Fuchsian groups and class numbers
Bo-Hae Im, Wonwoong Lee
We study certain types of Fuchsian groups of the first kind denoted by , which coincide with the Fricke groups or the arithmetic Hecke triangle groups of low levels. We find…
On the common zeros of quasi-modular forms for of level
Bo-Hae Im, Hojin Kim, Wonwoong Lee
In this paper, we study common zeros of the iterated derivatives of the Eisenstein series for of level and , which are quasi-modular forms. More precisely, we…