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REPORTS > KEYWORD > QUANTIFIED BOOLEAN FORMULA:
Reports tagged with quantified Boolean formula:
TR14-036 | 8th March 2014
Mikolas Janota, Leroy Chew, Olaf Beyersdorff

On Unification of QBF Resolution-Based Calculi

Revisions: 1

Several calculi for quantified Boolean formulas (QBFs) exist, but
relations between them are not yet fully understood.
This paper defines a novel calculus, which is resolution-based and
enables unification of the principal existing resolution-based QBF
calculi, namely Q-resolution, long-distance Q-resolution and the expansion-based
calculus ... more >>>

TR14-131 | 7th October 2014
Olaf Beyersdorff, Leroy Chew, Karteek Sreenivasaiah

A game characterisation of tree-like Q-Resolution size

We provide a characterisation for the size of proofs in tree-like Q-Resolution by a Prover-Delayer game, which is inspired by a similar characterisation for the proof size in classical tree-like Resolution. This gives the first successful transfer of one of the lower bound techniques for classical proof systems to QBF ... more >>>

TR15-192 | 26th November 2015
Ruiwen Chen, Rahul Santhanam

Satisfiability on Mixed Instances

The study of the worst-case complexity of the Boolean Satisfiability (SAT) problem has seen considerable progress in recent years, for various types of instances including CNFs \cite{PPZ99, PPSZ05, Sch99, Sch05}, Boolean formulas \cite{San10} and constant-depth circuits \cite{IMP12}. We systematically investigate the complexity of solving {\it mixed} instances, where different parts ... more >>>

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