[Tex/LaTex] Central superscripts on \bigcup


The \bigcup symbol allows you to write an upper bound (\bigcup_{lb}^{ub}) that will be centered on the top of the cup.
For my problem I'm defining a modified version of the union operator that I'd like to indicate ad \widetilde{\bigcup}, but I couldn't obtain the tilde between the cup and the upper bound

\widetilde {\bigcup_{\gamma = 1}^{n}} : puts the tilde above the n

\widetilde {\bigcup}_{\gamma = 1}^{n} : the upper bound is not centered

Any suggestion ?

Best Answer

This is the easiest way:



\wbigcup_{i=1}^n A_i

Note that \displaylimits is not really needed, but clarity is important.

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