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Theta operator on Hermitian modular forms over the Eisenstein field

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Abstract

The mod p kernel of the theta operator on Hermitian modular forms is studied in the case that the base field is the Eisenstein field.

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References

  1. Böcherer, S., Nagaoka, S.: On mod \(p\) properties of Siegel modular forms. Math. Ann. 338, 421–433 (2007)

    Article  MathSciNet  Google Scholar 

  2. Böcherer, S., Kodama, H., Nagaoka, S.: On the kernel of the theta operator mod \(p\). Manuscr. Math. 156, 149–169 (2017)

    Article  MathSciNet  Google Scholar 

  3. Cohen, D.M., Resnikoff, H.L.: Hermitian quadratic forms and Hermitian modular forms. Pac. J. Math. 76, 329–337 (1978)

    Article  MathSciNet  Google Scholar 

  4. Dern, T., Krieg, A.: Graded rings of Hermitian modular forms of degree 2. Manuscr. Math. 110, 251–272 (2003)

    Article  MathSciNet  Google Scholar 

  5. Freitag, E.: Modulformen zweiten Grades zum rationalen und Gaußschen Zahlkörper, pp. 3–49. Sitzungsberichte der Heidelberger Akademie der Wissenschaften, Heidelberg (1967)

  6. Gritsenko, V.A., Nikulin, V.V.: Igusa modular forms and simplest Lorentzian Kac–Moody algebras. Math. Sbornik 187, 1601–1641 (1996)

    Article  MathSciNet  Google Scholar 

  7. Hentschel, M., Krieg, A., Nebe, G.: On the classification of lattices over \({\mathbb{Q}}(\sqrt{-3})\), which are even unimodular \({\mathbb{Z}}\)-lattices. Abh. Math. Semin. Univ. Hambg. 80, 183–192 (2010)

    Article  MathSciNet  Google Scholar 

  8. Kikuta, T., Nagaoka, S.: On the theta operator for Hermitian modular forms of degree 2. Abh. Math. Semin. Univ. Hambg. 87, 145–163 (2017)

    Article  MathSciNet  Google Scholar 

  9. Kikuta, T., Takemori, S.: Sturm bounds for Siegel modular forms of degree 2 and odd weights. arXiv:1508.01610 (2015)

  10. Kikuta, T., Kodama, H., Nagaoka, S.: Note on Igusa’s cusp form of weight \(35\). Rocky Mt. J. Math. 45, 963–972 (2015)

    Article  MathSciNet  Google Scholar 

  11. Krieg, A.: The Maaß-space on the Hermitian half-space of degree 2. Math. Ann. 289, 663–681 (1991)

    Article  MathSciNet  Google Scholar 

  12. Martin, J.D., Senadheera, J.: Differential operators for Hermitian Jacobi forms and Hermitian modular forms. Ramanujan J. 42, 443–451 (2017)

    Article  MathSciNet  Google Scholar 

  13. Munemoto, T., Nagaoka, S.: Note on \(p\)-adic Hermitian Eisenstein series. Abh. Math. Semin. Univ. Hambg. 76, 247–260 (2006)

    Article  MathSciNet  Google Scholar 

  14. Nagaoka, S., Takemori, S.: Notes on theta series for Niemeier lattices. Ramanujan J. 42, 385–400 (2017)

    Article  MathSciNet  Google Scholar 

  15. Nagaoka, S., Takemori, S.: On the mod \(p\) kernel of the theta operator and Eisenstein series. J. Number Theory 188, 281–298 (2018)

    Article  MathSciNet  Google Scholar 

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Correspondence to Shoyu Nagaoka.

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This study was supported by Japan Society for the Promotion of Science (Grant No. 25400031).

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Nagaoka, S., Takemori, S. Theta operator on Hermitian modular forms over the Eisenstein field. Ramanujan J 52, 105–121 (2020). https://doi.org/10.1007/s11139-018-0111-y

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