English

L-invariants and Darmon cycles attached to modular forms

Number Theory 2010-05-04 v2 Algebraic Geometry

Abstract

Let f be a modular eigenform of even weight k>0 and new at a prime p dividing exactly the level, with respect to an indefinite quaternion algebra. The theory of Fontaine-Mazur allows to attach to f a monodromy module D_FM(f) and an L-invariant L_FM(f). The first goal of this paper is building a suitable p-adic integration theory that allows us to construct a monodromy module D(f) and an L-invariant L(f) in the spirit of Darmon. We conjecture both monodromy modules are isomorphic, and in particular the two L-invariants are equal. For the second goal of this note we assume the conjecture is true. Let K be a real quadratic field and assume the sign of the functional equation of the L-series of f over K is -1. The Bloch-Beilinson conjectures suggest that there should be a supply of elements in the Mordell-Weil group of the motive attached to f over the tower of narrow ring class fields of K. Generalizing work of Darmon for k=2, we give a construction of local cohomology classes which we expect to arise from global classes and satisfy an explicit reciprocity law, accounting for the above prediction.

Keywords

Cite

@article{arxiv.1004.3513,
  title  = {L-invariants and Darmon cycles attached to modular forms},
  author = {Victor Rotger and Marco Adamo Seveso},
  journal= {arXiv preprint arXiv:1004.3513},
  year   = {2010}
}

Comments

Abstract added. Few minor corrections made. Submitted version.

R2 v1 2026-06-21T15:12:43.555Z