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SOFSEM
2010
Springer
14 years 4 months ago
Finding and Certifying Loops
Abstract. The first part of this paper presents a new approach for automatically proving nontermination of string rewrite systems. We encode rewrite sequences as propositional for...
Harald Zankl, Christian Sternagel, Dieter Hofbauer...
COCOON
2000
Springer
14 years 6 days ago
Parameterized Complexity of Finding Subgraphs with Hereditary Properties
We consider the parameterized complexity of the following problem under the framework introduced by Downey and Fellows[4]: Given a graph G, an integer parameter k and a non-trivial...
Subhash Khot, Venkatesh Raman
CORR
1999
Springer
84views Education» more  CORR 1999»
13 years 7 months ago
Finding an ordinary conic and an ordinary hyperplane
Given a finite set of non-collinear points in the plane, there exists a line that passes through exactly two points. Such a line is called an ordinary line. An efficient algorithm...
Olivier Devillers, Asish Mukhopadhyay
SAT
2005
Springer
129views Hardware» more  SAT 2005»
14 years 1 months ago
On Finding All Minimally Unsatisfiable Subformulas
Much attention has been given in recent years to the problem of finding Minimally Unsatisfiable Subformulas (MUSes) of Boolean formulas. In this paper, we present a new view of the...
Mark H. Liffiton, Karem A. Sakallah
FSE
2006
Springer
159views Cryptology» more  FSE 2006»
13 years 11 months ago
Breaking the ICE - Finding Multicollisions in Iterated Concatenated and Expanded (ICE) Hash Functions
The security of hash functions has recently become one of the hottest topics in the design and analysis of cryptographic primitives. Since almost all the hash functions used today ...
Jonathan J. Hoch, Adi Shamir