English

On $p$-adic $L$-functions for $\text{GSp}_4 \times \text{GL}_2$

Number Theory 2025-05-14 v2

Abstract

We use higher Coleman theory to construct a new pp-adic LL-function for GSp4×GL2\text{GSp}_4 \times \text{GL}_2. While previous works by the first author, Pilloni, Skinner and Zerbes had considered the pp-adic variation of classes in the H2H^2 of Shimura varieties for GSp4\text{GSp}_4, in this note we explore the interpolation of classes in the H1H^1, which allows us to access to a different range of weights. Further, we show an interpolation property in terms of complex LL-values using the algebraicity results established in previous work by the authors.

Keywords

Cite

@article{arxiv.2305.07707,
  title  = {On $p$-adic $L$-functions for $\text{GSp}_4 \times \text{GL}_2$},
  author = {David Loeffler and Óscar Rivero},
  journal= {arXiv preprint arXiv:2305.07707},
  year   = {2025}
}

Comments

Revised version, to appear in Pacific J Math

R2 v1 2026-06-28T10:33:20.971Z