Subham Bhakta, Srilakshmi Krishnamoorthy, R. Muneeswaran
{"title":"小集合上模态的协整类","authors":"Subham Bhakta, Srilakshmi Krishnamoorthy, R. Muneeswaran","doi":"10.1142/s1793042124500799","DOIUrl":null,"url":null,"abstract":"<p>Serre showed that for any integer <span><math altimg=\"eq-00001.gif\" display=\"inline\" overflow=\"scroll\"><mi>m</mi><mo>,</mo><mspace width=\"0.25em\"></mspace><mi>a</mi><mo stretchy=\"false\">(</mo><mi>n</mi><mo stretchy=\"false\">)</mo><mo>≡</mo><mn>0</mn><mspace width=\"0.3em\"></mspace><mo stretchy=\"false\">(</mo><mo>mod</mo><mspace width=\"0.3em\"></mspace><mi>m</mi><mo stretchy=\"false\">)</mo></math></span><span></span> for almost all <span><math altimg=\"eq-00002.gif\" display=\"inline\" overflow=\"scroll\"><mi>n</mi><mo>,</mo></math></span><span></span> where <span><math altimg=\"eq-00003.gif\" display=\"inline\" overflow=\"scroll\"><mi>a</mi><mo stretchy=\"false\">(</mo><mi>n</mi><mo stretchy=\"false\">)</mo></math></span><span></span> is the <span><math altimg=\"eq-00004.gif\" display=\"inline\" overflow=\"scroll\"><mi>n</mi><mstyle><mtext>th</mtext></mstyle></math></span><span></span> Fourier coefficient of any modular form with rational coefficients. In this paper, we consider a certain class of cuspforms and study <span><math altimg=\"eq-00005.gif\" display=\"inline\" overflow=\"scroll\"><mi>#</mi><msub><mrow><mo stretchy=\"false\">{</mo><mi>a</mi><mo stretchy=\"false\">(</mo><mi>n</mi><mo stretchy=\"false\">)</mo><mspace width=\"0.3em\"></mspace><mo stretchy=\"false\">(</mo><mo>mod</mo><mspace width=\"0.3em\"></mspace><mi>m</mi><mo stretchy=\"false\">)</mo><mo stretchy=\"false\">}</mo></mrow><mrow><mi>n</mi><mo>≤</mo><mi>x</mi></mrow></msub></math></span><span></span> over the set of integers with <span><math altimg=\"eq-00006.gif\" display=\"inline\" overflow=\"scroll\"><mi>O</mi><mo stretchy=\"false\">(</mo><mn>1</mn><mo stretchy=\"false\">)</mo></math></span><span></span> many prime factors. Moreover, we show that any residue class <span><math altimg=\"eq-00007.gif\" display=\"inline\" overflow=\"scroll\"><mi>a</mi><mo>∈</mo><mi>ℤ</mi><mo stretchy=\"false\">/</mo><mi>m</mi><mi>ℤ</mi></math></span><span></span> can be written as the sum of at most 13 Fourier coefficients, which are polynomially bounded as a function of <span><math altimg=\"eq-00008.gif\" display=\"inline\" overflow=\"scroll\"><mi>m</mi><mo>.</mo></math></span><span></span></p>","PeriodicalId":14293,"journal":{"name":"International Journal of Number Theory","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Congruence classes for modular forms over small sets\",\"authors\":\"Subham Bhakta, Srilakshmi Krishnamoorthy, R. Muneeswaran\",\"doi\":\"10.1142/s1793042124500799\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Serre showed that for any integer <span><math altimg=\\\"eq-00001.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>m</mi><mo>,</mo><mspace width=\\\"0.25em\\\"></mspace><mi>a</mi><mo stretchy=\\\"false\\\">(</mo><mi>n</mi><mo stretchy=\\\"false\\\">)</mo><mo>≡</mo><mn>0</mn><mspace width=\\\"0.3em\\\"></mspace><mo stretchy=\\\"false\\\">(</mo><mo>mod</mo><mspace width=\\\"0.3em\\\"></mspace><mi>m</mi><mo stretchy=\\\"false\\\">)</mo></math></span><span></span> for almost all <span><math altimg=\\\"eq-00002.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>n</mi><mo>,</mo></math></span><span></span> where <span><math altimg=\\\"eq-00003.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>a</mi><mo stretchy=\\\"false\\\">(</mo><mi>n</mi><mo stretchy=\\\"false\\\">)</mo></math></span><span></span> is the <span><math altimg=\\\"eq-00004.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>n</mi><mstyle><mtext>th</mtext></mstyle></math></span><span></span> Fourier coefficient of any modular form with rational coefficients. In this paper, we consider a certain class of cuspforms and study <span><math altimg=\\\"eq-00005.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>#</mi><msub><mrow><mo stretchy=\\\"false\\\">{</mo><mi>a</mi><mo stretchy=\\\"false\\\">(</mo><mi>n</mi><mo stretchy=\\\"false\\\">)</mo><mspace width=\\\"0.3em\\\"></mspace><mo stretchy=\\\"false\\\">(</mo><mo>mod</mo><mspace width=\\\"0.3em\\\"></mspace><mi>m</mi><mo stretchy=\\\"false\\\">)</mo><mo stretchy=\\\"false\\\">}</mo></mrow><mrow><mi>n</mi><mo>≤</mo><mi>x</mi></mrow></msub></math></span><span></span> over the set of integers with <span><math altimg=\\\"eq-00006.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>O</mi><mo stretchy=\\\"false\\\">(</mo><mn>1</mn><mo stretchy=\\\"false\\\">)</mo></math></span><span></span> many prime factors. Moreover, we show that any residue class <span><math altimg=\\\"eq-00007.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>a</mi><mo>∈</mo><mi>ℤ</mi><mo stretchy=\\\"false\\\">/</mo><mi>m</mi><mi>ℤ</mi></math></span><span></span> can be written as the sum of at most 13 Fourier coefficients, which are polynomially bounded as a function of <span><math altimg=\\\"eq-00008.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>m</mi><mo>.</mo></math></span><span></span></p>\",\"PeriodicalId\":14293,\"journal\":{\"name\":\"International Journal of Number Theory\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2024-04-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Number Theory\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://doi.org/10.1142/s1793042124500799\",\"RegionNum\":3,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Number Theory","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1142/s1793042124500799","RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
摘要
塞雷证明,对于任意整数 m,几乎所有 n 的 a(n)≡0(modm),其中 a(n) 是任意有理系数模形式的第 n 个傅里叶系数。在本文中,我们考虑了某类余弦形式,并研究了在具有 O(1) 多质因数的整数集合上 #{a(n)(modm)}n≤x 的问题。此外,我们还证明了任何残差类 a∈ℤ/mℤ 都可以写成最多 13 个傅里叶系数之和,而这些系数作为 m 的函数是多项式有界的。
Congruence classes for modular forms over small sets
Serre showed that for any integer for almost all where is the Fourier coefficient of any modular form with rational coefficients. In this paper, we consider a certain class of cuspforms and study over the set of integers with many prime factors. Moreover, we show that any residue class can be written as the sum of at most 13 Fourier coefficients, which are polynomially bounded as a function of
期刊介绍:
This journal publishes original research papers and review articles on all areas of Number Theory, including elementary number theory, analytic number theory, algebraic number theory, arithmetic algebraic geometry, geometry of numbers, diophantine equations, diophantine approximation, transcendental number theory, probabilistic number theory, modular forms, multiplicative number theory, additive number theory, partitions, and computational number theory.