On $p$-adic Asai $L$-functions of Bianchi modular forms at non-ordinary primes and their decomposition into bounded $p$-adic $L$-functions
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912962057338880 |
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| author | Deo, Mihir |
| author_facet | Deo, Mihir |
| contents | Let $p$ be an odd prime integer, $F/\mathbb{Q}$ be an imaginary quadratic field, and $Ψ$ be a small slope cuspidal Bianchi modular form over $F$ which is non-ordinary at $p$. In this article, we first construct a $p$-adic distribution $L^{\mathrm{As}}_{p}(Ψ)$ that interpolates the twisted critical $L$-values of Asai (or twisted tensor) $L$-function of $Ψ$, generalizing the works of Loeffler--Williams from the ordinary case to the non-ordinary case. To obtain this distribution, we construct some polynomials using Asai--Eisenstein elements: the Betti analogue of the Euler system machinery, developed by Loeffler--Williams. We use some techniques analogous to those of Loeffler--Zerbes for interpolating the twists of Beilinson--Flach elements arising in the Euler system associated with Rankin--Selberg convolutions of elliptic modular forms. We also use the interpolation method developed by Amice--Vélu, Perrin-Riou, and Büyükboduk--Lei in the construction. Furthermore, under some assumptions, we decompose these unbounded $p$-adic distributions into the linear combination of bounded measures as done by Pollack, Sprung, and Lei--Loeffler--Zerbes in the elliptic modular forms case. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_10581 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On $p$-adic Asai $L$-functions of Bianchi modular forms at non-ordinary primes and their decomposition into bounded $p$-adic $L$-functions Deo, Mihir Number Theory Let $p$ be an odd prime integer, $F/\mathbb{Q}$ be an imaginary quadratic field, and $Ψ$ be a small slope cuspidal Bianchi modular form over $F$ which is non-ordinary at $p$. In this article, we first construct a $p$-adic distribution $L^{\mathrm{As}}_{p}(Ψ)$ that interpolates the twisted critical $L$-values of Asai (or twisted tensor) $L$-function of $Ψ$, generalizing the works of Loeffler--Williams from the ordinary case to the non-ordinary case. To obtain this distribution, we construct some polynomials using Asai--Eisenstein elements: the Betti analogue of the Euler system machinery, developed by Loeffler--Williams. We use some techniques analogous to those of Loeffler--Zerbes for interpolating the twists of Beilinson--Flach elements arising in the Euler system associated with Rankin--Selberg convolutions of elliptic modular forms. We also use the interpolation method developed by Amice--Vélu, Perrin-Riou, and Büyükboduk--Lei in the construction. Furthermore, under some assumptions, we decompose these unbounded $p$-adic distributions into the linear combination of bounded measures as done by Pollack, Sprung, and Lei--Loeffler--Zerbes in the elliptic modular forms case. |
| title | On $p$-adic Asai $L$-functions of Bianchi modular forms at non-ordinary primes and their decomposition into bounded $p$-adic $L$-functions |
| topic | Number Theory |
| url | https://arxiv.org/abs/2501.10581 |