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Generalized Eisenstein series and several modular transformation formulae

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Abstract

B.C. Berndt (J. Reine Angew. Math. 272:182–193, 1975; 304:332–365, 1978) has derived a number of new transformation formulas, in particular, the transformation formulae of the logarithms of the classical theta functions, by using a transformation formula for a more general class of Eisenstein series. In this paper, we continue his study. By using a transformation formula for a class of twisted generalized Eisenstein series, we generalize a transformation formula given by J. Lehner (Duke Math. J. 8:631–655, 1941) and give a new proof for transformation formulas proved by Y. Yang (Bull. Lond. Math. Soc. 36:671–682, 2004).

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Correspondence to Sung-Geun Lim.

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This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2006-214-C00003). This work also partially supported by BK21-Postech CoDiMaRo.

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Lim, SG. Generalized Eisenstein series and several modular transformation formulae. Ramanujan J 19, 121–136 (2009). https://doi.org/10.1007/s11139-008-9146-9

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  • DOI: https://doi.org/10.1007/s11139-008-9146-9

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