160 search results - page 19 / 32 » Homomorphism preservation theorems |
GLOBECOM
2006
IEEE
14 years 1 months ago
2006
IEEE
Overlay networks have been very useful in solving large scale data dissemination problems. In this paper, we consider the case of data gathering which is the inverse of disseminat...
IJFCS
2010
13 years 6 months ago
2010
The fundamental properties of the class QUASI of quasi-relabeling relations are investigated. A quasi-relabeling relation is a tree relation that is de ned by a tree bimorphism (...
GG
2004
Springer
14 years 26 days ago
2004
Springer
We propose to study two infinite graph transformations that we respectively call bounded and unbounded path transduction. These graph transformations are based on path substitutio...
FSTTCS
1999
Springer
13 years 11 months ago
1999
Springer
The λ-calculus has been much used to study the theory of substitution in logical systems and programming languages. However, with explicit substitutions, it is possible to get fi...
FSS
2008
13 years 7 months ago
2008
: We define a regularity axiom for lattice-valued convergence spaces where the lattice is a complete Heyting algebra. To this end, we generalize the characterization of regularity ...