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A combinatorial proof of the Harrow--Kolla--Schulman theorem
Let $Q^n := \{0,1\}^n$ be the Hamming cube with the Hamming metric. (Recall that the Hamming is defined by the distance $d(x,y) := \# \{ i : x_i \neq y_i \}$.
For integers $0 \leq k \leq n$, define a ...
6
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Nonclassical polynomials, circles, and groups
Tao and Ziegler have introduced a generalization of polynomials over a prime field called nonclassical polynomials, useful for studying the Gowers norm.
A nonclassical polynomial of degree $d$ is a ...