collaborators

10 papers

quant-ph2026

Lean-Quantum: Toward AI-Assisted Formalization of Quantum Information

Kazumi Kasaura, Kei Tsukamoto, Kento Mori +6

Quantum information theory is built on entropic quantities; among them, the sandwiched Rényi relative entropy is a fundamental divergence with various applications, and its data p…

cs.LG2026

Discovering New Theorems via LLMs with In-Context Proof Learning in Lean

Kazumi Kasaura, Naoto Onda, Yuta Oriike +3

Large Language Models (LLMs) have demonstrated significant promise in formal theorem proving. In this study, we investigate the ability of LLMs to discover novel theorems and produ…

cs.LG2026

Lean Formalization of Generalization Error Bound by Rademacher Complexity and Dudley's Entropy Integral

Sho Sonoda, Kazumi Kasaura, Yuma Mizuno +2

Understanding and certifying the generalization performance of machine learning algorithms -- i.e. obtaining theoretical estimates of the test error from the training error -- is a…

cs.LG2026

Near-Optimal Policy Identification in Robust Constrained Markov Decision Processes via Epigraph Form

Toshinori Kitamura, Tadashi Kozuno, Wataru Kumagai +6

Designing a safe policy for uncertain environments is crucial in real-world control systems. However, this challenge remains inadequately addressed within the Markov decision proce…

math.LO2026

Compactness in Constructive Mathematics via Affine Logic

Kazumi Kasaura

We study topology, particularly compactness, as an extension of Shulman's work on constructive mathematics via affine logic, while allowing propositional impredicativity. We introd…

cs.RO2026

Symmetry-Breaking in Multi-Agent Navigation: Winding Number-Aware MPC with a Learned Topological Strategy

Tomoki Nakao, Kazumi Kasaura, Tadashi Kozuno

In decentralized multi-agent navigation, agents that independently compute their controls without communicating goals or intentions can fall into symmetry-induced deadlocks because…