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APAL
1999
70views more  APAL 1999»
14 years 9 months ago
A Geometric Consequence of Residual Smallness
We describe a new way to construct large subdirectly irreducibles within an equational class of algebras. We use this construction to show that there are forbidden geometries of m...
Keith A. Kearnes, Emil W. Kiss, Matthew Valeriote
MOC
1998
131views more  MOC 1998»
14 years 9 months ago
An algorithm for evaluation of discrete logarithms in some nonprime finite fields
In this paper we propose an algorithm for evaluation of logarithms in the finite fields Fpn , where the number pn − 1 has a small primitive factor r. The heuristic estimate of ...
Igor A. Semaev
IFIP
2010
Springer
14 years 4 months ago
A Calculus for the Analysis of Wireless Network Security Protocols
We propose a timed broadcasting calculus for wireless systems. The operational semantics of our calculus is given both in terms of a Reduction Semantics and in terms of a Labelled ...
Francesco Ballardin, Massimo Merro
ICALP
2011
Springer
14 years 1 months ago
On the Semantics of Markov Automata
Markov automata describe systems in terms of events which may be nondeterministic, may occur probabilistically, or may be subject to time delays. We define a novel notion of weak ...
Yuxin Deng, Matthew Hennessy
EJC
2010
14 years 9 months ago
On the infinitesimal rigidity of weakly convex polyhedra
The main motivation here is a question: whether any polyhedron which can be subdivided into convex pieces without adding a vertex, and which has the same vertices as a convex poly...
Robert Connelly, Jean-Marc Schlenker