Nathan Keller

activity

20232026

most citedImproved covering results for conjugacy classes of symmetric groups via hypercontractivity

1 citations · 1 across the 2 of their papers we have counts for

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math.CO2025

The Forbidden Cross Intersection Problem for Permutations

Nathan Keller, Noam Lifshitz, Ohad Sheinfeld

We prove the following, for a universal constant $c > 0$ . Let $n \in N$ and $1 \leq t < c \frac{n}{l o g n}$ . Let $F, G \subset S_{n}$ be families of permutations such that no $σ\i…

cs.CR2025

Non-Adaptive Cryptanalytic Time-Space Lower Bounds via a Shearer-like Inequality for Permutations

Itai Dinur, Nathan Keller, Avichai Marmor

The power of adaptivity in algorithms has been intensively studied in diverse areas of theoretical computer science. In this paper, we obtain a number of sharp lower bound results…