Author

Chen-Xing Li

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Preprint Aug 2026

On the structure of graphs with given odd girth and large algebraic connectivity

A classical result of Andr\'asfai, Erd\H{o}s, and S\'os states that every $n$-vertex graph with odd girth at least $2k+1$ and minimum degree larger than $\frac{2n}{2k+1}$ is bipartite. Rather than imposing a minimum-degree condition, in this paper we investigate conditions on algebraic connectivity that force graphs of...

Zheng-Bo Chen, Chen-Xing Li, Zhouningxin Wang · 0 citations

#machine learning Preprint Sep 2026

MetaRSI / RSI2: A Meta-Recursive Self-Improving System for Recursive Self-Improving Systems Themselves

Recursive self-improvement (RSI) lets a system improve the model-building machinery from its own failures, so every later model inherits the gain. Yet RSI has been validated almost exclusively on coding and formal benchmarks such as science QA and mathematics. This format bound limits RSI to improvement within a machin...

Zi-Hang Tan, Lei-Xin Sun, Zi-Tong Shi et al. · 0 citations