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cs.LO2014
Hypothesis Elimination in Kleene Semirings
Ernie Cohen
A Kleene semiring is an algebraic structure satisfying the axioms of Kleene algebra, minus the annihilation axioms (x.0 = 0 = 0.x). We show that Kleene semirings (like Kleene algeb…
cs.LO2009★ 4 cited
Weak Kleene Algebra is Sound and (Possibly) Complete for Simulation
Ernie Cohen
We show that the axioms of Weak Kleene Algebra (WKA) are sound and complete for the theory of regular expressions modulo simulation equivalence, assuming their completeness for mon…
cs.LO2009★ 6 cited
A Better Reduction Theorem for Store Buffers
Ernie Cohen, Norbert Schirmer
When verifying a concurrent program, it is usual to assume that memory is sequentially consistent. However, most modern multiprocessors depend on store buffering for efficiency, an…