I keep on getting errors from Latex. For instance the following code looks OK to me but won't parse:(adsbygoogle = window.adsbygoogle || []).push({});

[itex]g(\vec{\bar{V}}_S, \vec{U}(1)) =\ _Sg_{ik}(O) _S\bar{V}_S^i _SU(1)^k [/itex]

However if I break it with the insertion of a close and then an open itex delimiter, the first bit parses but the second won't.

[itex]g(\vec{\bar{V}}_S, \vec{U}(1)) =[/itex][itex]\ _Sg_{ik}(O) _S\bar{V}_S^i _SU(1)^k [/itex]

Now if I break it yet again, it all parses OK.

[itex]g(\vec{\bar{V}}_S, \vec{U}(1)) =[/itex][itex]\ _Sg_{ik}(O) [/itex][itex]_S\bar{V}_S^i [/itex][itex]_SU(1)^k [/itex]

The three strings are identical, except for the insertion of [/itex][itex] first once and then twice.

I have put enough spaces in to deactivate the vBulletin 'no more than 50 consecutive nonspace characters' bug, but it still seems to go wrong.

Any help in fixing this would be much appreciated. I have a derivation I want to post, but it's impractical with this amount of latex problems.

Thanks very much.

PS is there any way to get that first arrow to sit over the V rather than off to the left?

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# Latex keeps on getting parsing errors

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