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arXiv · 2605.03535

Hyper-Minimization for Deterministic Register Automata

Yong Li·Qiyi Tang·Di-De Yen
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Abstract

We investigate hyper-minimization for deterministic register automata (DRAs). We begin by introducing DRA counterparts of classical notions from deterministic finite automata. Building on these foundations, we present an algorithm for hyper-minimizing well-typed DRAs, where each state is associated with a unique register type. The resulting automata are minimal with respect to both the number of states and registers among all well-typed DRAs. We prove the correctness of the proposed algorithm, thereby establishing the decidability of hyper-minimization for well-typed DRAs.

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Yong Li, Qiyi Tang, Di-De Yen. 2026-05-05. Hyper-Minimization for Deterministic Register Automata. https://arxiv.org/abs/2605.03535

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