Since this question was posted, the situation has changed - now any user can find all their deleted posts. Simply go to your profile and in the question tab you can click on "deleted questions" near the bottom. Similarly, you can find on "deleted answers" through the answers tab.
Despite the fact that now is any easy way to find all of your deleted post, I left below the original version of the answer - perhaps the information from that might be useful in some other situations.
See also:
- The section "Can I see a list of my deleted posts?" in the FAQ post: How does deleting work? What can cause a post to be deleted, and what does that actually mean? What are the criteria for deletion?.
- Various related posts on Meta Stack Exchange: Show all of my question/answers to me even if they are deleted, Make your deleted questions and answers more discoverable, We should be able to find questions or answers that we have deleted, How do I view my old deleted questions?, etc.
- Is there any way to see my deleted questions or answers? on Mathematics Meta
- Can I somewhere see my own deleted questions? on this meta.
I have run a SEDE query to list your questions: Questions (id, title) of a given user. Since SEDE is updated once a week (you can see "Data updated Mar 17 at 8:47" in the Data Explorer, these data still contain the posts which were posted before last week - even if they were deleted during this week.
You could download the query results after the update and compare the two files. However, I tried to check this manually and compare the list from SEDE with the list of questions in your profile. I found three following questions which seemed to be deleted at the moment.
- A length decreasing homotopy of a closed curve in a simply connected manifold (Google Cache)
- A differential operator associated with a vector field on the torus (Google Cache)
- Integrability of distributions which are invariant under the isometry group (Google Cache)
Since you are the poster of those question, now that you have links you should be able to access them.
I have checked whether they are available in Internet Archive, but I did not find any of these three questions there. As you can see, at the moment some version of the post is also available through Google cache (links are given above) - but I suppose that those cached links will stop working at some point.