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COCOON
2003
Springer
15 years 8 months ago
The Complexity of Boolean Matrix Root Computation
Abstract. We show that finding roots of Boolean matrices is an NPhard problem. This answers a twenty year old question from semigroup theory. Interpreting Boolean matrices as dire...
Martin Kutz
134
Voted
CAAN
2007
Springer
15 years 9 months ago
Vertex Pursuit Games in Stochastic Network Models
Abstract. Random graphs with given expected degrees G(w) were introduced by Chung and Lu so as to extend the theory of classical G(n, p) random graphs to include random power law g...
Anthony Bonato, Pawel Pralat, Changping Wang
147
Voted
ICCS
2007
Springer
15 years 7 months ago
Belief Flow in Assertion Networks
We define an abstract model of belief propagation on a graph based on the methodology of the revision theory of truth together with the Assertion Network Toolkit, a graphical inter...
Sujata Ghosh, Benedikt Löwe, Erik Scorelle
109
Voted
CORR
2010
Springer
175views Education» more  CORR 2010»
15 years 3 months ago
On affine rigidity
We study the properties of affine rigidity of a (hyper)graph and prove a variety of fundamental results. First, we show that affine rigidity is a generic property (i.e., only depen...
Steven J. Gortler, Craig Gotsman, Ligang Liu, Dyla...
129
Voted
EUROCAST
2005
Springer
92views Hardware» more  EUROCAST 2005»
15 years 9 months ago
Computation of Partial Automata Through Span Composition
In this paper a way to have structures with partiality in its internal structure in a categorical approach is presented and, with this, a category of partial graphs Grp is given an...
Karina Roggia, Marnes Hoff, Paulo Blauth Menezes