English

Supercuspidal L-packets via isocrystals

Representation Theory 2011-08-23 v2 Number Theory

Abstract

In a recent paper, DeBacker and Reeder construct and parameterize L-packets on pure inner forms of unramified p-adic groups, that consist of depth zero supercuspidal representations. We generalize their work to non-pure inner forms, by providing an alternative construction based on the theory of isocrystals with additional structure due to Kottwitz. Furthermore, we show the stability and endoscopic transfer for these L-packets.

Cite

@article{arxiv.1004.2230,
  title  = {Supercuspidal L-packets via isocrystals},
  author = {Tasho Kaletha},
  journal= {arXiv preprint arXiv:1004.2230},
  year   = {2011}
}

Comments

26 pages. Revisions in section 3: exposition focused on depth-zero L-packets, proofs streamlined, restrictions on the residual characteristic relaxed to p>2

R2 v1 2026-06-21T15:09:56.371Z