6,582 reputation
33662
bio website front.math.ucdavis.edu/author/…
location New York City
age 44
visits member for 5 years, 9 months
seen yesterday
Research: additive number theory; combinatorial number theory. Faculty at City University of New York, at the Staten Island and Graduate Center campuses.

1d
answered Counting elements with certain word length in abelian groups
Jul
12
revised Nonstandard analysis in probability theory
grammar fix
Jun
7
comment When is $(-1+\sqrt[3]{2})^n$ of the form $a+b\sqrt[3]{2}$?
The sequence of coefficients is in the encyclopedia, though not with this context. oeis.org/A108369
May
25
revised Cohen and Selfridge's proof about odd numbers which are neither the sum nor difference of a power of two and a prime
edited tags; edited title
May
24
comment Prescribed values for the uniform density
@SalvoTringali : It's often difficult to put a finger on what is a nonsequitor and what is simply my obtuseness. The result is true, but I haven't been able to understand Misik's proof in a detailed way. In "On asymptotic and logarithmic densities" (2005), Luca and Porubsky prove just the 4-densities result in 12 pages, while Misik proves much more in only 8 pages.
Feb
22
awarded  Nice Answer
Dec
25
comment Nimber multiplication
This is discussed at length in Lenstra's "Nim multiplication". openaccess.leidenuniv.nl/bitstream/handle/1887/2125/346_027.pdf
Dec
24
answered Comparing the Rational Approximability of Infinite Continued Fractions
Nov
28
revised How to test if the power of some algebraic number is the rational combination of two specific algebraic numbers?
spelling, TeX
Nov
28
revised what is the first non-constant term in the Kronecker Limit formula?
deleted cut-and-paste garbage
Nov
28
comment What's the volume of $\{x\in[0,1]^n|\sum x_i\le t\}$ for real $t$?
This is the Irwin-Hall distribution; there are indeed formulas in Wikipedia.
Nov
28
comment What's the volume of $\{x\in[0,1]^n|\sum x_i\le t\}$ for real $t$?
This is the Irwin-Hall distribution.
Nov
19
comment Dynamics in the integers - Floor function
The sequence $[n\alpha]$ is known as a Beatty sequence; the indicator function of a Beatty sequence (with irrational $\alpha$) is known as a Sturmian word. There are hundreds of papers working out properties of Beatty sequences.
Nov
16
comment Rate of convergence of an irrational rotation
Ah, I see. But still a little weird as distance isn't respected by the isomorphism (but boundedly so), and certainly algebraic $\alpha$ is not the same as algebraic $\lambda$ (but that wasn't part of the original question).
Nov
15
comment Rate of convergence of an irrational rotation
This answer has been accepted and all, but isn't it completely different from the original question? Here, powers of $\lambda$; there, multiples of $\alpha$.
Nov
15
revised Rate of convergence of an irrational rotation
edited body
Oct
21
awarded  Yearling
Oct
17
awarded  Good Question
Oct
16
comment Computer Algebra Errors
That's a great article!
Sep
30
awarded  Explainer