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Ben Brubaker

Ben Brubaker

School of Mathematics
University of Minnesota
Room 352, Vincent Hall
206 Church Street SE
Minneapolis, MN 55455

(612) 625-7396
(612) 625-2017
Email: brubaker@math.umn.edu

Most Recent CV (PDF)
(last updated Spring, 2018)


My primary research interests are analytic number theory and representation theory. More specifically, I work on problems in automorphic forms and representations of algebraic groups, and their generalizations on arithmetic covering groups.

This work is supported by NSF Grant DMS-2101392, and prior to this by DMS-1801527.

Below is a list of recent publications and preprints. Collaborative work with Dan Bump, including many supporting materials on multiple Dirichlet series, can also be found in the Papers section of his home page. His page contains some additional supporting materials, mostly for our older papers from the "aughts," so you might want to try there first.

Graduate Students at UMN

I have had five Ph.D. students graduate under my supervision at Minnesota:

Current students at Minnesota:

Graduate Students at MIT

While at MIT, I graduated four Ph.D. students. Their names, interests, and first jobs are listed below:

Undergradute Student Research at Stanford

  • Bob Hough, Stanford Class of '07, wrote a comprehensive Summer Research Journal on Gauss sums, culling from Ireland and Rosen; Berndt, Evans, and Williams; and papers of Weil, Yamamoto, etc. with some original synthesis.
  • Carl Erickson, Stanford Class of '07, has been working on behavior of the Riemann Zeta Function in the critical strip. The resulting article appeared in the Stanford Undergraduate Research Journal and can be found in the Spring 2005, Issue 4 of SURJ.
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    Teaching at Minnesota ('12 - present)

    For Spring '17, I am teaching Math 3283W, "Sequences, Series, and Foundations," which serves as both a first course in elementary analysis and an introduction to mathematical proofs.

    During Fall '16, I taught Math 8300, a graduate topics course on Iwahori-Hecke algebras.

    In Spring '16, I taught Math 3593H, integral calculus on manifolds using linear algebra, from the book of Hubbard and Hubbard.

    In Fall '15, I am taught an undergraduate honors course, Math 3592H using the book of Hubbard and Hubbard. Lecture notes will be posted there throughout the semester. The course will continue in Spring 2016.

    For Fall '14, I taught a graduate course in algebraic number theory, Math 8251, using Neukirch's book. Lecture notes, which just expand on and rework the book, are available at 8251 lecture notes.

    In Spring '14, I taught a second-semester graduate course in complex analysis focusing on the Riemmann mapping theorem and Riemann surfaces, Math 8702. Scans of lecture notes I gave are linked there (culled from Ahlfors, Miranda, and Donaldson's books).

    For Fall '13 and Fall '12, I've been teaching an introductory graduate course in complex analysis, Math 8701.

    For Spring '13, I was on leave as an organizer of a special semester program at Brown's new NSF-sponsored institute ICERM.

    Teaching at MIT ('06 - '12)

    For Fall '11, I'm teaching 18.03 -- Differential Equations.

    During the '10-'11 academic year, I taught a seminar on additive number theory from Nathanson's books and a graduate course in automorphic forms (1/2 classical, 1/2 analytic aspects from Borel's book). I tried to write detailed course notes -- some of which are little more than recasting of notes of Milne, or Shimura's book, or Borel's book. They are available here: 18.785 notes.

    During the '09-'10 academic year, once again I taught 18.01, first-year calculus and was on Junior Leave in Spring '10.

    For Spring '09, I taught 18.786: Topics in Algebraic Number Theory on "Tate's Thesis," closely following the books of Ramakrishnan-Valenza ("Fourier Analysis on Number Fields" -- the actual name for Tate's thesis) and the classic Weil's "Basic Number Theory." There was no course website.

    During Fall '08, I taught 18.01, first-year calculus, using Simmons. (These course webpages are retired each semester, as their contents are used in future semesters.)

    During Spring '08, I taught 18.784: The Mathematical Legacy of Ramanujan, a small seminar course. I hope to eventually put up students' final projects, which were outstanding and original.

    For Fall, '07, I taught 18.781: Theory of Numbers, a first course in number theory using Niven, Zuckerman, and Montgomery, but also featuring special topics like cubic reciprocity based on the treatment in Ireland and Rosen's book.

    During Spring '07, I taught 18.103: Fourier Analysis - Theory and Applications. This course covers Lebesgue measure and integration theory and Fourier analysis, using the book by Adams and Guillemin. We'll discuss applications to probability along the way, and if time permits, how both the probability and the Fourier analysis are used in modern analytic number theory.

    For Fall '06, I taught 18.786: Topics in Algebraic Number Theory on "Reciprocity Laws."

    Teaching at Stanford ('03 -'06, Skeletons of the course webpages remain at most links. Email me if you are interested in their contents.)

    During the Spring quarter, 2006, I am teaching two courses:

    During the Fall quarter, 2005, I taught Math 51 and Math 248, an introduction to automorphic forms, co-taught with Dan Bump. The course website for Math 51 can be found at:

    For the Spring quarter, 2005, I taught just one course:

    During Winter quarter, 2005, I taught two courses:

    For the Fall quarter, 2004, I taught Math 52: Integral Calculus of Several Variables, a course on integration techniques culminating in the theorems of Stokes, Gauss, and Green.

    During Spring quarter, 2004, I was on leave.

    During Winter quarter, 2004, I taught two courses:


    Other Seminars at MIT and in the Boston Area

    MIT number theory seminar, organized by Bjorn Poonen. TUESDAYS 4:30-5:30 in 2-139 (when there's no BC-MIT seminar).

    MIT STAGE Seminar, Seminar on Topics in Arithmetic, Geometry, Etc., run by Greg Minton, Abhinav Kumar, and Bjorn Poonen - FRIDAYS 11-12, 2-139

    MIT Lie Groups Seminar, organized by David Vogan. WEDNESDAYS, 4:30-5:30, 2-143

    MIT Combinatorics Seminar - WEDNESDAYS AND FRIDAYS, 4:15

    BU Algebra Seminar, which is secretly always about number theory - MONDAYS, 4:15


    Collaborators' Websites:

    The views and opinions expressed in this page are strictly those of the page author. The contents of this page have not been reviewed or approved by the University of Minnesota.

    Last change: September 4, 2015.