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» Proving Conditional Termination
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CORR
2006
Springer
131views Education» more  CORR 2006»
13 years 9 months ago
Sequences with constant number of return words
An infinite word has the property Rm if every factor has exactly m return words. Vuillon showed that R2 characterizes Sturmian words. We prove that a word satisfies Rm if its compl...
Lubomíra Balková, Edita Pelantov&aac...
DM
2006
60views more  DM 2006»
13 years 9 months ago
On cycles through specified vertices
For a set X of vertices of a graph fulfilling local connectedness conditions the existence of a cycle containing X is proved. AMS classification: 05C38, 05C45, 05C35
Tobias Gerlach, Frank Göring, Jochen Harant, ...
EJC
2006
13 years 9 months ago
Deza digraphs
As a generalization of Deza graphs, we introduce Deza digraphs and describe the basic theory of these graphs. We also prove the necessary and sufficient conditions when a weakly d...
Kaishun Wang, Yan-Quan Feng
JSCIC
2008
66views more  JSCIC 2008»
13 years 8 months ago
Substructuring Preconditioners for Mortar Discretization of a Degenerate Evolution Problem
In this paper we present new efficient variants of structured preconditioners for algebraic linear systems arising from the mortar discretization of a degenerate parabolic system o...
Micol Pennacchio, Valeria Simoncini
ENTCS
2007
126views more  ENTCS 2007»
13 years 8 months ago
Notes on Generative Probabilistic Bisimulation
In this notes we consider the model of Generative Probabilistic Transition Systems, and Baier and Hermanns’ notion of weak bisimulation defined over them. We prove that, if we ...
Simone Tini