Author's Final Manuscript
Journal of Number Theory
We give a new proof of a result due to Breuil and Emerton which relates the splitting behavior at p of the p-adic Galois representation attached to a p-ordinary modular form to the existence of an overconvergent p-adic companion form for f.
Bergdall, John. 2014. "Ordinary modular forms and companion points on the eigencurve." Journal of Number Theory 134: 226-239.