Tell me more ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.
up vote 0 down vote favorite

This is suppose to be understood as $H_2^2$

H_2

Taken from the full equation :

enter image description here

from lecture 3 of Cosmology on youtube by Leonard Suskind

Can anyone please give some information on the notation ( and possibly latex ) for the notation used for $H$?

Thank you

share|improve this question
1  
Apart from the plain $H$ you have $\mathcal H$ (\mathcal) and $\mathscr H$ (\mathscr), and of course $\mathbf H$ (\mathbf), $\mathsf H$ (\mathsf) and $\mathfrak H$ (\mathfrak). – Asaf Karagila Feb 5 at 22:20
@AsafKaragila : Which one is the one used here? \mathcal ? – Arjang Feb 5 at 22:22
1  
Possibly. I am unfamiliar with this notation, I just wanted to give you the available options in hope it will somehow help. – Asaf Karagila Feb 5 at 22:23
@AsafKaragila : yes, I was only aware of \mathbb all the above are new for me, thank you. – Arjang Feb 5 at 22:26
Oh yeah, I forgot about $\mathbb H$ (\mathbb). I knew I left one of them out!! – Asaf Karagila Feb 5 at 22:28
show 1 more comment

Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook.

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.