Theta products and eta quotients of level 24 and weight 2

We find bases for the spaces M2(Γ0(24),(d⋅))M2(Γ0(24),(d⋅)) (d=1,8,12,24d=1,8,12,24) of modular forms. We determine the Fourier coefficients of all 3535 theta products φ[a1,a2,a3,a4](z)φ[a1,a2,a3,a4](z) in these spaces. We then deduce formulas for the number of representations of a positive integer...

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Main Authors: Alaca, Ayşe, Alaca, Şaban, Aygin, Zafer Selcuk
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2017
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Online Access:https://hdl.handle.net/10356/84889
http://hdl.handle.net/10220/43604
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-848892023-02-28T19:28:07Z Theta products and eta quotients of level 24 and weight 2 Alaca, Ayşe Alaca, Şaban Aygin, Zafer Selcuk School of Physical and Mathematical Sciences Eta quotients Dedekind eta function We find bases for the spaces M2(Γ0(24),(d⋅))M2(Γ0(24),(d⋅)) (d=1,8,12,24d=1,8,12,24) of modular forms. We determine the Fourier coefficients of all 3535 theta products φ[a1,a2,a3,a4](z)φ[a1,a2,a3,a4](z) in these spaces. We then deduce formulas for the number of representations of a positive integer nn by diagonal quaternary quadratic forms with coefficients 11, 22, 33 or 66 in a uniform manner, of which 1414 are Ramanujan's universal quaternary quadratic forms. We also find all the eta quotients in the Eisenstein spaces E2(Γ0(24),(d⋅))E2(Γ0(24),(d⋅)) (d=1,8,12,24d=1,8,12,24) and give their Fourier coefficients. MOE (Min. of Education, S’pore) Accepted version 2017-08-17T05:25:11Z 2019-12-06T15:53:07Z 2017-08-17T05:25:11Z 2019-12-06T15:53:07Z 2017 Journal Article Alaca, A., Alaca, Ş., & Aygin, Z. S. (2017). Theta products and eta quotients of level 24 and weight 2. Functiones et Approximatio, Commentarii Mathematici, in press. 0208-6573 https://hdl.handle.net/10356/84889 http://hdl.handle.net/10220/43604 10.7169/facm/1628 en Functiones et Approximatio, Commentarii Mathematici © 2017 Adam Mickiewicz University, Faculty of Mathematics and Computer Science. This is the author created version of a work that has been peer reviewed and accepted for publication in Functiones et Approximatio, Commentarii Mathematici, by Adam Mickiewicz University, Faculty of Mathematics and Computer Science. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.7169/facm/1628]. 29 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Eta quotients
Dedekind eta function
spellingShingle Eta quotients
Dedekind eta function
Alaca, Ayşe
Alaca, Şaban
Aygin, Zafer Selcuk
Theta products and eta quotients of level 24 and weight 2
description We find bases for the spaces M2(Γ0(24),(d⋅))M2(Γ0(24),(d⋅)) (d=1,8,12,24d=1,8,12,24) of modular forms. We determine the Fourier coefficients of all 3535 theta products φ[a1,a2,a3,a4](z)φ[a1,a2,a3,a4](z) in these spaces. We then deduce formulas for the number of representations of a positive integer nn by diagonal quaternary quadratic forms with coefficients 11, 22, 33 or 66 in a uniform manner, of which 1414 are Ramanujan's universal quaternary quadratic forms. We also find all the eta quotients in the Eisenstein spaces E2(Γ0(24),(d⋅))E2(Γ0(24),(d⋅)) (d=1,8,12,24d=1,8,12,24) and give their Fourier coefficients.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Alaca, Ayşe
Alaca, Şaban
Aygin, Zafer Selcuk
format Article
author Alaca, Ayşe
Alaca, Şaban
Aygin, Zafer Selcuk
author_sort Alaca, Ayşe
title Theta products and eta quotients of level 24 and weight 2
title_short Theta products and eta quotients of level 24 and weight 2
title_full Theta products and eta quotients of level 24 and weight 2
title_fullStr Theta products and eta quotients of level 24 and weight 2
title_full_unstemmed Theta products and eta quotients of level 24 and weight 2
title_sort theta products and eta quotients of level 24 and weight 2
publishDate 2017
url https://hdl.handle.net/10356/84889
http://hdl.handle.net/10220/43604
_version_ 1759853044320698368