- RESEARCH INTERESTS:
Analytic Number Theory, Random Matrix Theory, Analysis and
Probability (distribution of zeros and n-level statistics for
families of L-functions, especially families of elliptic curves with rank over
Q(T), classical random matrix theory, random graphs, ranks of elliptic curves,
computational number theory, probability theory, Benford's Law, cryptography,
linear programming, multiple Dirichlet series).
Thesis
Papers
Talks
My Book (Invitation to Modern Number Theory)
Handouts
My
Riddles Page
ACCEPTED PAPERS
- 1- and 2-level densities for rational families of elliptic curves:
evidence for the underlying group symmetries.
Compositio Mathematica (140
(2004),
no. 4, 952-992).
pdf
- Distribution of eigenvalues for the ensemble
of real symmetric Toeplitz matrices (with Chris Hammond).
Journal of
Theoretical Probability
(18 (2005), no. 3, 537-566).
pdf
- Benford's law, values of L-functions and the
3x+1 problem (with Alex Kontorovich),
Acta Arithmetica. (120
(2005), no. 3, 269–297).
pdf.
- Variation in the number of points on
elliptic curves and applications to excess rank,
C.
R. Math. Rep. Acad. Sci. Canada
(27 (2005), no. 4, 111–120, Expanded Version). pdf
- Incomplete exponential
sums in several variables (with Eduardo Dueñez,
Howard Straubing, and Amitahba Roy),
Journal of Number Theory
(116 (2006), no. 1, 168–199).
pdf
- A derivation of James' Pythagorean
projection,
By The Numbers -- The
Newsletter of the SABR Statistical Analysis Committee (16
(February 2006), no. 1, 17–22).
pdf (expanded
version:
pdf).
Chance Magazine (20 (Winter 2007), no. 1, 40-48).
- Investigations of zeros near the central point of elliptic curve
L-functions,
Experimental Mathematics (15 (2006), no. 3,
257–279).
pdf
(data available
online).
- Closed-form Bayesian inferences for the logit model via polynomial expansions (with Eric Bradlow and Kevin Dayaratna),
Quantitative Marketing and Economics
(4 (2006), no. 2, 173–206).
pdf
- Low-lying zeros of L-functions with orthogonal symmetry (with Chris
Hughes),
Duke Mathematical Journal (136
(2007), no. 1, 115–172)
pdf
- The low-lying zeros of a GL(4) and a GL(6) family of
L-functions (with
Eduardo Dueñez),
Compositio Mathematica
(142 (2006), no. 6,
1403–1425)
pdf.
- Constructing one-parameter families of
elliptic curves
over Q(T) with moderate rank (with Scott Arms, Alvaro Lozano-Robledo),
Journal of Number Theory. (123
(2007), no 2, 388–402
pdf
- Benford's Law applied to hydrology data - results and relevance to
other geophysical data (with Mark Nigrini),
Mathematical Geology, (39
(2007), no. 5, 469--490).
- Distribution of eigenvalues of real symmetric palindromic Toeplitz matrices and
circulant matrices (with Adam Massey and
John Sinsheimer),
Journal of
Theoretical Probability. (20 (2007), no. 3,
637--662.)
pdf
- When the Cramer-Rao Inequality provides no information,
Communications in Information and Systems.
(7 (2007), no. 3, 265--272).
pdf
- The Modulo 1 Central Limit Theorem and Benford's Law for Products
(with Mark Nigrini),
International Journal of Algebra. (2 (2008), no. 3,
119--130).
pdf
- A Symplectic Test of the L-Functions Ratios Conjecture,
IMRN (2008). (Vol. 2008, article ID rnm146, 36 pages, doi:10.1093/imrn/rnm146).
pdf
- An identity for sums of polylogarithm functions,
Integers (electronic journal of combinatorial number theory). (8
(2008), A15)
pdf
- A probabilistic proof of Wallis' formula for
π,
American Mathematical Monthly. (115 (2008), no. 8, 740--745)
pdf
- The distribution of the second largest eigenvalue in families of
random regular graphs
(with Tim Novikoff and Anthony Sabelli),
Experimental Mathematics. (17 (2008), no. 2,
231--244.)
pdf
- Silver Scheduler:
Demand-Driven Scheduling of
Movies in a Multiplex (with Jehoshua Eliashberg, Quintus Hegie, Jason Ho, Dennis Huisman, Sanjeev
Swami, Charles B. Weinberg and Berend Wierenga), to appear in the
International Journal of Market Research.
pdf
- Order statistics and Benford's law
(with Mark Nigrini), to appear in the
International Journal of Mathematics and Mathematical Sciences.
pdf
- When almost all sets are difference dominated (with Peter Hegarty),
to appear in
Random Structures and Algorithms.
pdf
- Lower order terms in the 1-level density for families of holomorphic
cuspidal newforms, to appear in
Acta Arithmetica.
pdf
SUBMITTED PAPERS
- The effect of convolving families of
L-functions on the underlying group symmetries (with Eduardo Dueñez),
submitted to
Proc. of the LMS.
pdf
- Advanced tests based on Benford's Law to test the reliability of and
control risk pertaining to accounting data (with Mark Nigrini),
submitted to
Auditing: A Journal of Practice and Theory.
- An orthogonal test of the L-functions Ratios Conjecture, submitted
to the
London Mathematical Society.
pdf
- Explicit constructions of infinite families of MSTD sets (with
Brooke Orosz and Dan Scheinerman), submitted to the Journal of Number Theory.
pdf
PREPRINTS / IN PREPARATION.
- Chains of distributions, hierarchical Bayesian models and Benford's
Law (with D. Jang, J. U. Kang,
A. Kruckman and J. Kudo)
pdf
- 1-Level Density for Square-Free Dirichlet
Characters.
pdf
- Using the 2-Level Density to Improve Bounds on Excess Rank in
Families.
pdf
- m-Paths and the 3x+1 Problem (with Bruce Adcock and Sucheta
Soundararajan).
- Virus Propagation in Certain Types of Networks (with Leo Kontorovich
and Amitabha Roy).
- Models for zeros near the central point of families of elliptic
curves (with Eduardo Dueñez, Duc Khiem Huynh, Jon Keating and Nina
Snaith).
Thesis
Papers
Talks
My Book (Invitation to Modern Number Theory)
Handouts
My
Riddles Page
- COURSES:
Welcome letter
to Williams Students
Possible
thesis / colloquium projects
Green Chicken contest
- 2008 - 2009:
Math 103 (Calculus I)
Math 209 (Differential Equations and Vector Calculus)
Math 406 (Analysis
and Number Theory)
- Previous classes
(Brown):
Math
1 (freshman seminar: riddles to modern mathematics), Math 90 (calculus,
summer
calculus)
-
Math 35 (honors
multivariable calculus), Math
52 (linear algebra)
Math 54 (honors linear algebra),
Math 153 (abstract
algebra),
-
Math 162
(mathematical statistics), Math 197 (Benford's
law,
sabermetrics)
- Previous Classes
(Ohio State)
Math 104 (Basic College
Mathematics),
Math 148 (Algebra,
Trigonometry and their Applications)
-
Math 187/487 (Problem Solving / Advanced
Problem Solving),
Math 683L (Topics in
Linear Algebra)
-
Working groups (Euler,
fractals)
-
LINKS:
photos of Cam
Pictures
Twistie
Art
Arxiv
MathSciNet
Mathlabs (Princeton
, NYU,
OSU,
AIM)
Williams Math
Williams College