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arXiv · 2508.09733

Congruences of $p$-adic $L$-functions of modular forms at non-ordinary primes

Raiza Corpuz·Antonio Lei
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Abstract

We present an analogue of Greenberg-Vatsal's and Emerton-Pollack-Weston's results on congruences of $p$-adic $L$-functions for $p$-non-ordinary cuspidal eigenforms $f$ and $g$ of equal weight that are $p$-congruent. In particular, we prove that the Iwasawa invariants of the analytic and algebraic signed $p$-adic $L$-functions of $f$ and $g$ are related by explicit formulae under appropriate hypotheses. We also show under the same assumptions that provided the algebraic and analytic $\mu$-invariants vanish, the signed Iwasawa main conjecture is true for $f$ if and only if it is true for $g$.

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Raiza Corpuz, Antonio Lei. 2025-08-13. Congruences of $p$-adic $L$-functions of modular forms at non-ordinary primes. https://arxiv.org/abs/2508.09733

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