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math.NT2021
Proof of a conjecture of Dahmen and Beukers on counting integral Lamé equations with finite monodromy
Zhijie Chen, Ting-Jung Kuo, Chang-Shou Lin
In this paper, we prove Dahmen and Beukers' conjecture that the number of integral Lamé equations with index modulo scalar equivalence with the monodromy group dihedral …
math.NT2021★ 1 cited
Quasimodular forms and modular differential equations which are not apparent at cusps: I
Chang-Shou Lin, Yifan Yang
In this paper, we explore a two-way connection between quasimodular forms of depth and a class of second-order modular differential equations with regular singularities on the…
math.NT2017★ 1 cited
Critical points of the classical Eisenstein series of weight two
Zhijie Chen, Chang-Shou Lin
In this paper, we completely determine the critical points of the normalized Eisenstein series of weight . Although is not a modular form, our result shows tha…