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Non-Existence of Ramanujan Congruences in Modular Forms of Level Four
Published online by Cambridge University Press: 20 November 2018
Abstract
Ramanujan famously found congruences like $p(5n\,+\,4)\,\equiv \,0$ mod 5 for the partition function. We provide a method to find all simple congruences of this type in the coefficients of the inverse of a modular form on ${{\Gamma }_{1}}(4)$ that is non-vanishing on the upper half plane. This is applied to answer open questions about the (non)-existence of congruences in the generating functions for overpartitions, crank differences, and 2-colored $F$-partitions.
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- Copyright © Canadian Mathematical Society 2011
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