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A Note on an Old-Fashioned Algebra for (Disconnected) Graphs
@INPROCEEDINGS{Gad:TERMGRAPH2009,
title = {{A Note on an Old-Fashioned Algebra for (Disconnected) Graphs}},
author = {{Fabio} {Gadducci}},
booktitle = {Proceedings of TERMGRAPH 2009, 5th International Workshop on Term Graph Rewriting},
editor = {Andrea Corradini},
pages = {3-15},
abstract = {Graphs with interfaces are a simple and intuitive tool for allowing a graph G to interact with the environment, by equipping it with two morphisms J → G, I → G. These “handles” were used to define graphical operators, and to provide an inductive presentation of graph rewriting. A main feature of graphs with interfaces is their characterization as terms of a free algebra. So far, this was possible only with discrete interfaces, i.e., containing no edge. This note shows that a similar free construction can be performed also with disconnected interfaces, i.e., containing only nodes connected to at most one edge.},
publisher = {Elsevier},
series = {Electronic Notes in Theoretical Computer Science},
volume = {253},
number = {4},
year = {2009},
url = {http://rap.dsi.unifi.it/sensoriasite/253_4.pdf},
invited = {Y},
keywords = {formal specification, graph transformation},
partner = {PISA},
school = {University of Pisa},
status = {public},
task = {T7.1},
}
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