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LICS
2010
IEEE
15 years 2 months ago
The Undecidability of Boolean BI through Phase Semantics
We solve the open problem of the decidability of Boolean BI logic (BBI), which can be considered as the core of separation and spatial logics. For this, we define a complete phas...
Dominique Larchey-Wendling, Didier Galmiche
LOGCOM
2010
88views more  LOGCOM 2010»
15 years 2 months ago
Tableaux for Public Announcement Logic
Public announcement logic extends multi-agent epistemic logic with dynamic operators to model the informational consequences of announcements to the entire group of agents. In thi...
Philippe Balbiani, Hans P. van Ditmarsch, Andreas ...
FSTTCS
2010
Springer
15 years 2 months ago
Fast equivalence-checking for normed context-free processes
Bisimulation equivalence is decidable in polynomial time over normed graphs generated by a context-free grammar. We present a new algorithm, working in time O(n5 ), thus improving...
Wojciech Czerwinski, Slawomir Lasota
CORR
2011
Springer
156views Education» more  CORR 2011»
14 years 11 months ago
Impossibility of Succinct Quantum Proofs for Collision-Freeness
We show that any quantum algorithm to decide whether a function f : [n] → [n] is a permutation or far from a permutation must make Ω n1/3 /w queries to f, even if the algorith...
Scott Aaronson
CPM
2011
Springer
402views Combinatorics» more  CPM 2011»
14 years 7 months ago
Tractability Results for the Consecutive-Ones Property with Multiplicity
A binary matrix has the Consecutive-Ones Property (C1P) if its columns can be ordered in such a way that all 1’s in each row are consecutive. We consider here a variant of the C1...
Cedric Chauve, Ján Manuch, Murray Patterson...