Abstract: Our prior work established the decidability of current-location timed opacity (CLTO) in timed automata with integer resets (IRTA). This letter considers initial-location timed opacity (ILTO) ...

A feature-lattice dichotomy theorem mapping each protection-system feature combination to decidable/undecidable and to its exact complexity class. Decidable fragments closed under composition, so that ...

During their studies, students encounter names like Kurt Gödel and Alan Turing, usually with the same mix of respect and mild resignation. One reads what they have proven, accepts it as impressive, ...

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