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## F(t') = \int_{-\infty}^{\infty} dt \tilde{F}(t,t') ##

is there a standard way to denote this integral as being "Open", that is to say if I write

## H = F(t') G(t) ##

I want this to mean

## H = \int_{-\infty}^{\infty} dt \tilde{F}(t,t') G(t) ##

Rather than

## H = [\int_{-\infty}^{\infty} dt \tilde{F}(t,t') ] * G(t) ##

I could make up some notation, but I'd rather not if one exists!

Many thanks