Citing own results which were obtained under former name I'm giving a talk about results I obtained in my MSc thesis, some time after which I changed my last name. The result will be published under my former name. How should I state it during the talk? I want it both to be clear that this is my result, and that if someone wants to look it up they should do so under the former name.
Since I've seen it's customary to state own results using only the initial:


  Theorem (Y., 2016)


I thought I should write it as:


  Theorem (Y. (under Formername), 2016)
Theorem (Y. (under Formername), 2016)


Is fine. (I have personally never seen a paper that state[s one's] own results using only the initial. I presume it is specific to the OP's discipline.) Alternatively, Theorem (Y. (formally Xxx), 2016) or my preference:


  Theorem (Xxx (now Y.), 2016)


I favour this option because the bibliography will contain Xxx (2016), not Y. (2016). (At least, it won't unless you modify the bibliography.)