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20112025
most citedSome remarks on Rankin-Cohen brackets of eigenforms

9 citations · 10 across the 6 of their papers we have counts for

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math.NT2025

Variant of Ramanujan polynomials and a conjecture of Maji & Sarkar

Mrityunjoy Charan, Jaban Meher, Siddhi Pathak

We settle a conjecture proposed by B. Maji and T. Sarkar regarding the location of zeros of a two-parameter family of reciprocal polynomials, for positive integers…

math.NT2022

On signs of Hecke eigenvalues of Siegel eigenforms

Arvind Kumar, Jaban Meher, Karam Deo Shankhadhar

In this article, we distinguish Siegel cuspidal eigenforms of degree two on the full symplectic group from the signs of their Hecke eigenvalues. To establish our theorem, we obtain…

math.NT2019

Congruences in Hermitian Jacobi and Hermitian modular forms

Jaban Meher, Sujeet Kumar Singh

In this paper we first prove an isomorphism between certain spaces of Jacobi forms. Using this isomorphism, we study the mod theory of Hermitian Jacobi forms over $\mathbb{Q}(i…

math.NT2017

On the coefficients of symmetric power -functions

Jaban Meher, Karam Deo Shankhadhar, G. K. Viswanadham

We study the signs of the Fourier coefficients of a newform. Let be a normalized newform of weight for . Let be the th Fourier coefficient of . For a…

math.NT2014

Sign changes of coefficients of certain Dirichlet series

Jaban Meher, Sudhir Pujahari, Karam Deo Shankhadhar

In this paper, we give criteria for infinitely many sign changes of the coefficients of any Dirichlet series if the coefficients are real numbers. We also provide examples where ou…

math.NT2014

Oscillations of coefficients of Dirichlet series attached to automorphic forms

Jaban Meher, M. Ram Murty

For , let be an irreducible cuspidal automorphic representation of with unitary central character. Let be the coeffici…

math.NT2013★ 1 cited

A short note on sign changes

Jaban Meher, Karam Deo Shankhadhar, G. K. Viswanadham

In this paper, we present a quantitative result for the number of sign changes for the sequences of the Fourier coefficients of normalized Hecke eige…

math.NT2011★ 9 cited

Some remarks on Rankin-Cohen brackets of eigenforms

Jaban Meher

We investigate the cases for which products of two quasimodular or nearly holomorphic eigenforms are eigenforms. We also genaralize the results of Ghate \cite{ghate1} to the case o…