Is this symbol used at all in math? It looks to me like an ‘A’ with a lower-case omega on top (although I'm not completely sure that the thing on top is an omega).
I am asking this question because I work on a piece of software that features a math editor. An alpha user of the software was complaining that he/she couldn't create this notation. They claimed it was some kind of vector notation. We weren’t given context by user, just that they couldn’t create.