Research

Publications

✢ Simultaneous approximation in nilsystems and the multiplicative thickness of return-time sets. Submitted.

Additive and geometric transversality of fractal sets in the integers, with J. Moreira and F. K. Richter. Submitted.

A combinatorial proof of a sumset conjecture of Furstenberg, with J. Moreira and F. K. Richter. To appear in Combinatorica.

On Katznelson’s Question for skew product systems, with A. Koutsogiannis and F. K. Richter. To appear in the Bulletin of the AMS.

A Khintchine-type theorem and solutions to linear equations in Piatetski-Shapiro sequences. Acta Arith. 192 (2020), no. 3, 267–288.

On the interplay between notions of additive and multiplicative largeness and its combinatorial applications, with V. Bergelson. J. Combin. Theory Ser. A 172 (2020), 105203, 60 pp.

Multiplicative combinatorial properties of return time sets in minimal dynamical systems, with A. Koutsogiannis and F. K. Richter. Discrete Contin. Dyn. Syst. 39 (2019), no. 10, 5891–5921.

Multiplicative richness of additively large sets in Zd, with V. Bergelson. J. Algebra 503 (2018), 67-103.

Shift equivalence in the generalized factor order, with J. Fidler, J. Pantone, B. K. Miceli, and M. Xu. Arch. Math. (Basel) 110 (2018), no. 6, 539-547. (poster)

Algebraic, analytic, and geometric notions of largeness for subsets of Zd and their applications. PhD Dissertation.

Solutions to certain linear equations in Piatetski-Shapiro sequences. Acta Arith. 177 (2017), no. 1, 39-52.

Marstrand-type theorems for the counting and mass dimensions in Zd. Combin. Probab. Comput. 25 (2016), no. 5, 700-743.

Sumset estimates in abelian groups. MS Thesis.

Expositions and notes

Others

✢ Imre Z. Ruzsa: Difference sets and the Bohr topology.  Unpublished manuscript, 1985.  (Posted here with permission from Imre Z. Ruzsa.)