When is the derivative of an eta quotient another eta quotient?

Aygin, ZS; Toh, PC

Toh, PC (reprint author), Nanyang Technol Univ, Natl Inst Educ, Math & Math Educ, 1 Nanyang Walk, Singapore 637616, Singapore.

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2019; 480 (1):

Abstract

In this paper we use techniques from the theory of modular forms to determine all eta quotients whose derivative is also an eta quotient of levels up ......

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