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**To**:*Multiple recipients of list LATEX-L <LATEX-L@RELAY.URZ.UNI-HEIDELBERG.DE>***Subject**:**\mathsf for tensors (was: Capital greek letters)****From**:*Ulrik Vieth <vieth@thphy.uni-duesseldorf.de>***Date**: Mon, 5 May 1997 11:30:23 +0200- Reply-To: Mailing list for the LaTeX3 project <LATEX-L@RELAY.URZ.UNI-HEIDELBERG.DE>
- Sender: Mailing list for the LaTeX3 project <LATEX-L@RELAY.URZ.UNI-HEIDELBERG.DE>

Hans Aberg: > But if you decide to typeset tensors upright sans serif, then the > Christoffel symbol, which normally is an upper case $\Gamma$, should be > typeset like that too. (But using a $\Gamma$ for the Christoffel symbol is > so standard, it should perhaps be typeset upright anyhow.) I'm not quite sure what you mean. If you are refering to a specific Christoffel symbol $\Gamma_{ij}^{k}$, you're dealing with a scalar compnent of a pseudo-tensor, which means that the $\Gamma$ would be set in \mathnormal anyway (whether upright or italics might depend on the publisher's preferences for uppercase greek). Bold sans serif (oblique) would only be used when referring to a tensor as a whole, e.g. when writing about the metric tensor $\mathtens{g} = (g_{ij})$. Writing $\mathtens{\Gamma}$ to refer to all the Christoffel symbols as a whole would be very unusual indeed, so there's probably little reason to worry. Cheers, Ulrik.

**References**:**Re: Capital greek letters and the math font encoding***From:*Hans Aberg <haberg@MATEMATIK.SU.SE>

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