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[Introduction To] A Gentle Introduction To The Vax System, John R. Hubbard
[Introduction To] A Gentle Introduction To The Vax System, John R. Hubbard
Bookshelf
This book was written originally for students enrolled in computer science courses at the University of Richmond. Very few had worked on a large time-sharing system like the VAX.
The purpose of this book is to help the novice become comfortable using any of the Digital Equipment Corporations VAX computers, from the Micro-VAX to the powerful VAX 8000 system. The book is meant to be used as a tutorial.
Maps Which Preserve Graphs, Van C. Nall
Maps Which Preserve Graphs, Van C. Nall
Department of Math & Statistics Faculty Publications
In 1976 Eberhart, Fúgate, and Gordh proved that the weakly confluent image of a graph is a graph. A much weaker condition on the map is introduced called partial confluence, and it is shown that the image of a graph is a graph if and only if the map is partially confluent.
In addition, it is shown that certain properties of one-dimensional continua are preserved by partially confluent maps, generalizing theorems of Cook and Lelek, Tymchatyn and Lelek, and Grace and Vought. Also, some continua in addition to graphs are shown to be the images of partially confluent maps only.