What Is the Notation for the Incidence Function in Graph Theory?

In summary, the conversation is about the symbol for the incidence function in graph theory and what it is called. The symbol is a v divided by a straight vertical line and is known as psi, a Greek letter. The conversation also mentions the use of LaTeX to display mathematical symbols.
  • #1
woundedtiger4
188
0
Hi all,
I don't know if analysis is the right place for me to post this thread therefore please accept my apologies in advance if I am mistaken.
In graph theory the incidence function that associates vertices & edges http://img41.imageshack.us/img41/8171/32004284.jpg , in the text it has following notation http://books.google.co.uk/books?id=...ce=gbs_ge_summary_r&cad=0#v=onepage&q&f=false at page 2, what do we call to this notation? (it's a v divided by a straight vertical line in the middle)
 
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  • #2
that is psi, a greek letter

http://en.wikipedia.org/wiki/Psi_(letter )
 
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  • #3
wisvuze said:
that is psi, a greek letter

http://en.wikipedia.org/wiki/Psi_(letter )

no, this is not
 
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  • #4
woundedtiger4 said:
no, this is not

Yes, it is.
 
  • #5
[tex]\psi[/tex]
Click the quote button and read what I have posted.
 
  • #6
Jimmy Snyder said:
[tex]\psi[/tex]
Click the quote button and read what I have posted.

What is this Sorcery?!
 
  • #7
WannabeNewton said:
What is this Sorcery?!

It is the ancient art of LaTeX. Merely a few know its forms and shapes.
 
  • #8
micromass said:
Yes, it is.

[STRIKE]from what angle it looks psi?[/STRIKE]
ok from now on I will read it as psi
 

FAQ: What Is the Notation for the Incidence Function in Graph Theory?

What is graph theory?

Graph theory is a branch of mathematics that studies the properties and relationships of graphs. A graph is a mathematical structure consisting of vertices (or nodes) connected by edges.

What is notation in graph theory?

Notation in graph theory refers to the symbols and conventions used to represent graphs and their components. This includes shorthand notations for describing graphs, labeling vertices and edges, and representing various graph properties and operations.

What are some common notations used in graph theory?

Some common notations used in graph theory include G for a graph, V for the set of vertices, E for the set of edges, and n for the number of vertices. Other notations include using curly braces to indicate sets, using subscripts to denote specific vertices or edges, and using parentheses to indicate an edge between two vertices.

What is the notation problem in graph theory?

The notation problem in graph theory refers to the challenge of choosing appropriate symbols and conventions to represent complex graphs and their properties in a concise and consistent manner. This can be especially difficult when working with large or highly structured graphs.

Why is notation important in graph theory?

Notation is important in graph theory because it allows for clear and efficient communication of mathematical concepts and ideas related to graphs. By using consistent and well-defined notation, researchers can easily share and build upon each other's work, leading to further advancements in graph theory and related fields.

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