
Jonathan Lubin 

I’ve been retired* from Brown for sixteen years now, or emeritus if you like Latin†. Left Providence somewhat dubiously in 1998, and then discovered that Pasadena had certain charms of its own. Now (as of May 2016), we seem to be well settled in Saint Paul, no longer feeling our way around, since we’ve been here three and a half years. * Not retiring enough, according to some. † It really means “depleted of merit”. 

email: 
At any rate, in this site you’ll find everything about my professional life: here, you can get my Curriculum Vitæ in .pdf format, as well as a list of my publications. And you see my contact information to the left. For all other (nonmathematical) information about me, you should look in on my other page. 

Formally, I’m still a member of the Number Theory Group at Brown, but since I’m there so little, my mathematical contacts before the move to Minnesota were at Caltech, USC, and even UCLA. Here in Saint Paul, I’m feeling bad at not having stopped in more at UM, a couple of miles from here, but I’ve been rather busy with domesticities. 

As for research, I actually am continuing to get a little done. That means Algebraic Geometry and Number Theory broadly; narrowly, it means padic analysis, nonarchimedean dynamical systems, and formal groups. A little while back, I got a paper in the Journal of Number Theory, in the special issue in memory of David Hayes. In it, I use the elementariest analytic methods to reprove several standard but rather deep results of Higher Ramification Theory, in particular the HasseArf Theorem. If you’d like a .pdf of it, just let me know. More recently, I’ve been communicating with Bryden Cais of Arizona and using some of the techniques of the paper above to answer some questions on the arithmetic of infinite padic extensions, and who knows what will come of that. The fact remains that I have to be considered a mathematical dilettante. 
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