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Simone Bova, Hubie Chen. How Many Variables are Needed to Express an Existential Positive Query?. Theory Comput. Syst., 63(7):1573-1594, 2019. [doi]
Possibly Related PublicationsThe following publications are possibly variants of this publication: How Many Variables Are Needed to Express an Existential Positive Query?Simone Bova, Hubie Chen. icdt 2017: [doi] Compiling Existential Positive Queries to Bounded-Variable FragmentsChristoph Berkholz, Hubie Chen. PODS 2019: 353-364 [doi] On the complexity of existential positive queriesHubie Chen. tocl, 15(1):9, 2014. [doi]
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