Over the past 30-40 years, the so-called polynomial method has developed into a powerful tool in combinatorics and (additive) number theory. There has been a lot of recent interest in it after Dvir’s … 582 more words

## Tags » Polynomial Method

#### On Zeros of a Polynomial in a Finite Grid: the Alon-Furedi bound

My joint paper with Aditya Potukuchi, Pete L. Clark and John R. Schmitt is now up on arXiv: arXiv:1508.06020.

This work started a few months back when I emailed Pete and John, pointing out an easy generalization of Chevalley-Warning theorem using something known as the… 244 more words

#### Chevalley-Warning Theorem and Blocking Sets

The classical Chevalley-Warning theorem gives us a sufficient condition for a system of polynomial equations over a finite field to have common solutions. Affine blocking sets… 635 more words

#### Balls in Bins

When I was learning combinatorics for the first time (I was probably 16) there was this problem about distributing balls in bins (or urns) that I came across. 535 more words

#### The Kakeya problem

The original Kakeya needle problem is to *find the least amount of area required to continuously rotate a unit line segment in the (Euclidean) plane by a full rotation…* 888 more words

#### Two proofs of the Schwartz-Zippel lemma

The fact that a univariate polynomial over a field of degree has at most zeroes is well known. It follows from the so called Factor theorem, if and only if . 907 more words

#### The Bombieri-Stepanov proof of the Hasse-Weil bound

Let be a finite field of order , and let be an absolutely irreducible smooth projective curve defined over (and hence over the algebraic closure of that field). 2,808 more words