ON LEAVE 20122013 AT UNIV. OF MINNESOTA: Minnesota Homepage

Ben Brubaker
Cecil and Ida B. Green Career Development Chair
Associate Professor
Department of Mathematics
MIT
Room 2267
Cambridge, MA 02139
Phone:
Fax: 
(617) 2534079
(617) 2534358 
Email: 
brubaker@math.mit.edu 
somewhat current CV (PDF)
(last updated Spring, 2010)

Research
My primary research interests are analytic number theory and representation theory. More specifically, I work on problems in automorphic forms and their generalizations on arithmetic covering groups.
This work is supported by an NSF Career Grant (DMS0844185), the James Ferry, Jr. Fund for Innovation in Research Education, and a Cecil and Ida B. Green Career Development Chair.
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. He does a better job of keeping current, so you could try there first.
 Iwahori Whittaker functions and Demazure operators (with D. Bump and A. Licata), Submitted for publication.
 Whittaker coefficients of metaplectic, parabolic Eisenstein series (with S. Friedberg), In preparation.
 Eisenstein Series, Crystals, and Ice (expository paper with D. Bump and S. Friedberg), To appear in Notices of AMS (December 2011).
 Metaplectic Ice (with Bump, Chinta, Friedberg, and Gunnells), To appear in Birkhauser Progress in Math.
 Crystals of Type B and metaplectic Whittaker functions (with Bump, Chinta, and Gunnells), To appear in Birkhauser Progress in Math.
 Coefficients of the nfold Theta function and Weyl group multiple Dirichlet series (with Bump, Friedberg, and Hoffstein), To appear in S.J. Patterson Festschrift.
 Schur polynomials and the YangBaxter equation (with D. Bump and S. Friedberg), To appear in Comm. Math. Phys.
 A crystal definition for symplectic multiple Dirichlet series (with J. Beineke and S. Frechette), To appear in Birkhauser Progress in Math.
 Weyl group multiple Dirichlet series of Type C (with J. Beineke and S. Frechette), To appear in Pacific Journal of Math.
 Weyl group multiple Dirichlet series, Eisenstein series, and crystal bases (with D. Bump and S. Friedberg), Annals of Math. 173 10811120 (2011)
 Weyl group multiple Dirichlet series: Type A combinatorial theory (with D. Bump and S. Friedberg)  Preliminary Version. Book available as: Annals of Math. Studies v. 175, Princeton Univ. Press (2011).
 Gauss sum combinatorics and metaplectic Eisenstein series (with D. Bump and S. Friedberg), In ''Automorphic forms and Lfunctions I. Global Aspects,'' Contemporary Mathematics v. 488 (2009) 6182.
 Twisted Weyl group multiple Dirichlet series: the stable twisted case (with D. Bump and S. Friedberg), Eisenstein series and applications 126. Progr. Math., 258, Birkhauser.
 Weyl Group Multiple Dirichlet Series III: Eisenstein series and twisted unstable A_r (joint with D. Bump, S. Friedberg, and J. Hoffstein), Annals of Math. 166 (2007)
 Residues of Weyl Group Multiple Dirichlet Series associated to GL(n+1) (with Daniel Bump), Proc. Symp. Pure Math. 75 (2006)
 Weyl Group Multiple Dirichlet Series II: The Stable Case (joint with D. Bump and S. Friedberg), Invent. Math. 165 (2006), 325355
 Weyl Group Multiple Dirichlet Series I (joint with D. Bump, G. Chinta, S. Friedberg, and J. Hoffstein), Proc. Symp. Pure Math. 75 (2006)
 On Kubota's Dirichlet Series (with Daniel Bump), J. Reine Angew. (2006) 598, 159184
 Cubic twists of GL(2) automorphic Lfunctions, (joint with S. Friedberg and J. Hoffstein), Invent. Math. 160 (2005) no. 1, 3158
 Nonvanishing twists of GL(2) automorphic Lfunctions, (joint with A. Bucur, G. Chinta, S. Frechette and J. Hoffstein), IMRN 78 (2004), 42114239
 Analytic Continuation for Cubic Multiple Dirichlet Series, Ph.D. Thesis, Brown University (2003).
Graduate Students at MIT
I currently have one graduate student working with me, and three that graduated with a Ph.D. in the last two years. Their names, interests, and first jobs are listed below:
 Mario DeFranco, 3rd year graduate student, working on projects in padic Whittaker functions.
 Catherine Lennon, (postdoc at UPenn, graduated May, 2011), wrote a thesis on finite field hypergeometric function identities for traces of Hecke operators and trace of Frobenius for elliptic curves. Here are the two papers that comprised her thesis:
 Sawyer Tabony, (visiting assistant professor at Boston College, graduated May, 2011) wrote a thesis on symmetric function theory from lattice models in statistical mechanics and Hecke algebra computations for the metaplectic group.
 Peter McNamara (Szego asst. professor at Stanford, graduated May, 2010), worked on Whittaker functions for metaplectic forms over local fields with connections to crystal bases, and symmetric function theory. Here are the two papers that comprised his thesis:
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 MIT ('06  present)
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, firstyear 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 RamakrishnanValenza ("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, firstyear 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:
 Math 152
 Math 249B  An Introduction to Langlands Program
During the Fall quarter, 2005, I taught Math 51 and Math 248, an introduction to automorphic forms, cotaught 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:

Math 109: Applied Group Theory, an introduction to group theory focusing on groups as measures of symmetry.

Math 248B: Algebraic Number Theory, covering basic introduction to automorphic Lfunctions.
During Fall quarter, 2003, I taught also Math 51: Linear Algebra and Differential Calculus of Several Variables. Click on the link for the web page.
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Other Seminars at MIT and in the Boston Area
MIT number theory seminar, organized by Bjorn Poonen. TUESDAYS 4:305:30 in 2139 (when there's no BCMIT seminar).
MIT STAGE Seminar, Seminar on Topics in Arithmetic, Geometry, Etc., run by Greg Minton, Abhinav Kumar, and Bjorn Poonen  FRIDAYS 1112, 2139
MIT Lie Groups Seminar, organized by David Vogan. WEDNESDAYS, 4:305:30, 2143
MIT Combinatorics Seminar  WEDNESDAYS AND FRIDAYS, 4:15
BU Algebra Seminar, which is secretly always about number theory  MONDAYS, 4:15
Old Seminar Links
Stanford Representation Theory Seminar 20052006
The topics of this seminar range from arithmetic applications of automorphic representations to combinatorics related to Lie algebra representations. A schedule for this year's seminar can be found at:
This year, the number theory seminar is jointly run between Stanford and AIM (American Institute of Mathematics). More information about the seminar can be foound at the following link:
Nat Thiem and I cochair the Stanford Representation Theory Seminar for the academic year 20042005. A preliminary webpage is here:
Mihran Papikian and I cochaired the Stanford Number Theory Seminar for the 20032004 academic year. A schedule can be found here:
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Links
Collaborators' Websites:
Ben Brubaker
Department of Mathematics, 2267
Massachusetts Institute of Technology
77 Massachusetts Ave.
Cambridge, MA 02139
U.S.A.
Phone: 6172534079
Email: brubaker "at" math "dot" mit "dot" edu
Last change: October 21, 2011.