English

Symmetric Exponential Time Requires Near-Maximum Circuit Size: Simplified, Truly Uniform

Computational Complexity 2024-04-05 v2

Abstract

In a recent breakthrough, Chen, Hirahara and Ren prove that S2E/1⊄SIZE[2n/n]\mathsf{S_2E}/_1 \not\subset \mathsf{SIZE}[2^n/n] by giving a single-valued FS2P\mathsf{FS_2P} algorithm for the Range Avoidance Problem (Avoid\mathsf{Avoid}) that works for infinitely many input size nn. Building on their work, we present a simple single-valued FS2P\mathsf{FS_2P} algorithm for Avoid\mathsf{Avoid} that works for all input size nn. As a result, we obtain the circuit lower bound S2E⊄i.o.\mathsf{S_2E} \not\subset {i.o.}-SIZE[2n/n]\mathsf{SIZE}[2^n/n] and many other corollaries: 1. Almost-everywhere near-maximum circuit lower bound for Σ2EΠ2E\mathsf{\Sigma_2E} \cap \mathsf{\Pi_2E} and ZPENP\mathsf{ZPE}^{\mathsf{NP}}. 2. Pseudodeterministic FZPPNP\mathsf{FZPP}^{\mathsf{NP}} constructions for: Ramsey graphs, rigid matrices, pseudorandom generators, two-source extractors, linear codes, hard truth tables, and KpolyK^{poly}-random strings.

Keywords

Cite

@article{arxiv.2310.17762,
  title  = {Symmetric Exponential Time Requires Near-Maximum Circuit Size: Simplified, Truly Uniform},
  author = {Zeyong Li},
  journal= {arXiv preprint arXiv:2310.17762},
  year   = {2024}
}