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» Complexity of determining nonemptiness of the core
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CPM
2005
Springer
106views Combinatorics» more  CPM 2005»
13 years 10 months ago
An Optimal Algorithm for Online Square Detection
A square is the concatenation of two identical non-empty strings. Let S be the input string which is given character by character. Let m be the (unknown) smallest integer such that...
Gen-Huey Chen, Jin-Ju Hong, Hsueh-I Lu
LICS
2008
IEEE
13 years 11 months ago
On the Asymptotic Nullstellensatz and Polynomial Calculus Proof Complexity
We show that the asymptotic complexity of uniformly generated (expressible in First-Order (FO) logic) propositional tautologies for the Nullstellensatz proof system (NS) as well a...
Søren Riis
ITP
2010
178views Mathematics» more  ITP 2010»
13 years 7 months ago
Interactive Termination Proofs Using Termination Cores
Recent advances in termination analysis have yielded new methods and tools that are highly automatic. However, when they fail, even experts have difficulty understanding why and de...
Panagiotis Manolios, Daron Vroon
GLVLSI
2008
IEEE
150views VLSI» more  GLVLSI 2008»
13 years 5 months ago
Using unsatisfiable cores to debug multiple design errors
Due to the increasing complexity of today's circuits a high degree of automation in the design process is mandatory. The detection of faults and design errors is supported qu...
André Sülflow, Görschwin Fey, Rod...
PODS
2005
ACM
109views Database» more  PODS 2005»
14 years 5 months ago
XPath satisfiability in the presence of DTDs
We study the satisfiability problem associated with XPath in the presence of DTDs. This is the problem of determining, given a query p in an XPath fragment and a DTD D, whether or...
Michael Benedikt, Wenfei Fan, Floris Geerts