## You are here

Homenotation

## Primary tabs

# notation

half the first Betti number of $ \Sigma$

$\displaystyle \frac{1}{2}\dim H^1(\Sigma\,;\mathbb{Q})\quad,$

If i click on Betti number is get that the homology group

is denoted by

H_{1}(\Sigma\,;\mathbb{Q})

can you change yours to match?

Also, PM lacks any definition of surface. Your entry defines it

but does not have in the defines list. can it be added?

Actually i would perfer a totally separate entry for just

surface. Care to add it?

Parting words from the person who closed the correction:

> half the first Betti number of $ \Sigma$
> $\displaystyle \frac{1}{2}\dim H^1(\Sigma\,;\mathbb{Q})\quad,$
> If i click on Betti number is get that the homology group
> is denoted by
> H_{1}(\Sigma\,;\mathbb{Q})
Yes the the first homology group is de

**Status:**Rejected

Reference to the user who closed the correction.:

Reference to the article this correction is about:

Status of the article (was it accepted?):

0

Status of the article (is it closed?):

1

What kind of correction is this:

Meta

- Forums
- Planetary Bugs
- HS/Secondary
- University/Tertiary
- Graduate/Advanced
- Industry/Practice
- Research Topics
- LaTeX help
- Math Comptetitions
- Math History
- Math Humor
- PlanetMath Comments
- PlanetMath System Updates and News
- PlanetMath help
- PlanetMath.ORG
- Strategic Communications Development
- The Math Pub
- Testing messages (ignore)

- Other useful stuff
- Corrections