 

David J. Schmitz
Endomorphism rings of almost full formal groups


Published: 
August 27, 2006

Keywords: 
padic formal groups, endomorphism rings 
Subject: 
11S31, 14L05 


Abstract
Let \ring{K} be the integral closure of Z_{p} in a finite field
extension K of Q_{p}, and let F be a onedimensional full formal
group defined over \ring{K}. We study certain finite subgroups
C of F and prove a conjecture of Jonathan Lubin concerning the
absolute endomorphism ring of the quotient F/C when F has height
2. We also investigate ways in which this result can be generalized
to padic formal groups of higher height.


Author information
Department of Mathematics, North Central College, 30 N Brainard St, Naperville, IL 60540
djschmitz@noctrl.edu

