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

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Discussion Overview

The discussion revolves around the notation for the incidence function in graph theory, specifically focusing on the symbol that represents the relationship between vertices and edges. Participants explore the correct identification and interpretation of this notation.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant asks about the notation used for the incidence function in graph theory, describing it as a "v divided by a straight vertical line."
  • Another participant identifies the notation as the Greek letter psi.
  • Some participants express disagreement regarding the identification of the notation, with conflicting assertions about its correctness.
  • There is a mention of using LaTeX to represent the notation, which prompts further discussion about the complexity of the notation.
  • One participant expresses confusion about the notation, referring to it as "sorcery" and indicating a lack of familiarity with LaTeX.
  • Another participant acknowledges the identification of the notation as psi and expresses intent to adopt this interpretation moving forward.

Areas of Agreement / Disagreement

Participants exhibit disagreement regarding the identification of the notation, with some asserting it is psi while others contest this claim. The discussion remains unresolved as differing views persist.

Contextual Notes

There are unresolved assumptions regarding the clarity of the notation being discussed and the specific context in which it is used in graph theory.

woundedtiger4
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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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that is psi, a greek letter

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

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

no, this is not
 
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woundedtiger4 said:
no, this is not

Yes, it is.
 
\psi
Click the quote button and read what I have posted.
 
Jimmy Snyder said:
\psi
Click the quote button and read what I have posted.

What is this Sorcery?!
 
WannabeNewton said:
What is this Sorcery?!

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

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

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