COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Number Theory Seminar > On the local mod p representation attached to a modular form

## On the local mod p representation attached to a modular formAdd to your list(s) Download to your calendar using vCal - Kevin Buzzard (Imperial)
- Tuesday 22 January 2013, 16:15-17:15
- MR14.
If you have a question about this talk, please contact Teruyoshi Yoshida. There is a 2-dimensional p-adic Galois representation attached to any modular form which is an eigenform for the Hecke operators. One can reduce it mod p and get an even simpler object – a mod p Galois representation, which will have finite image. One would have thought that nowadays essentially everything was known about this representation, but actually there are still some dangling issues at p. For example – if I give you an explicit modular form (e.g. via its q-expansion), is the associated local mod p representation reducible or irreducible? This question is local, but still poorly understood. I will explain what little I know, most of which is joint work with Toby Gee. In what looks like a sledgehammer-cracking-a-nut approach, we invoke recent deep work of Breuil-Berger and others on the p-adic and mod p Langlands philosophy for GL(2) to get some concrete down-to-earth results. This talk is part of the Number Theory Seminar series. ## This talk is included in these lists:- All CMS events
- All Talks (aka the CURE list)
- CMS Events
- DPMMS Lists
- DPMMS Pure Maths Seminar
- DPMMS info aggregator
- MR14
- Number Theory Seminar
- School of Physical Sciences
Note that ex-directory lists are not shown. |
## Other listsGates Conversation Peterhouse Theory Group Department of Earth Sciences Seminars (downtown)## Other talksDragonfly Wings: A model evolutionary system. Antibiotic resistance and antibiotic alternatives: Looking towards the future "Linear and rotary molecular motors" Defects in materials and how to describe them Property and Portfolios: Spaces of Finance in Nineteenth-century France Same Sex Cultures and Pariah Formations in North Africa |