2023Kyushu Journal of MathematicsOpen access

ZEROS OF CERTAIN WEAKLY HOLOMORPHIC MODULAR FORMS

Seiichi Hanamoto

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Abstract

Weakly holomorphic modular forms for modular groups are holomorphic away from the cusp. We study a certain family of weakly holomorphic modular forms and the locations of their zeros. We prove that all of the zeros in the standard fundamental domain for the modular group lie on a lower boundary arc, providing conditions.

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Weakly holomorphic modular forms for modular groups are holomorphic away from the cusp. We study a certain family of weakly holomorphic modular forms and the locations of their zeros. We prove that all of the zeros in the standard fundamental domain for the modular group lie on a lower boundary arc, providing conditions.

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Available abstract

Weakly holomorphic modular forms for modular groups are holomorphic away from the cusp. We study a certain family of weakly holomorphic modular forms and the locations of their zeros. We prove that all of the zeros in the standard fundamental domain for the modular group lie on a lower boundary arc, providing conditions.

Key concepts: Holomorphic function, Mathematics, Modular form, Modular design, Boundary (topology), Pure mathematics, Modular group, Cusp (singularity)

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