I would like to ask about if a question about the following subject can be potentially interesting and on topic on MathOverflow. I would like **to ask on the main site** of MathOverflow **about the equations for an hypothetical object in theoretical physics: gravitational geons.** I've asked 20 days ago a question at undergraduate level on Mathematical Stack Exchange with title *Gravitational geons: an explanation for mathematicians* and identifier **4509074**, at this ocassion I want to ask on MathOverflow a characterization of the equations for professional mathematiciasn of what is a gravitational geon, if such characterization makes sense. Maybe additionally I ask for (general) references supporting the answer that can to provide the professor.

I add as general reference that Wikipedia has the article with title *Geon (physics).*

Question.I would like to ask on Meta if a question about the equations/mathematical characterization of gravitational geons can be interesting and on topic on MathOverflow. In such case I would like to ask this question in next few days on the main site MathOverflow.Many thanks.

If this question on Meta isn't suitable please add a comment that I can to delete it in next few hours.

I've edited (three days ago) a question on Physics Stack Exchange, this *Mathematical characterization of gravitational geons*, post with identifier **726281** the users of the site were kind adding in the comment thread links about papers related to gravitational geons.

The Quantum Labyrinth: How Richard Feynman and John Wheeler Revolutionized Time and Realityby Paul Halpern (Basic Books, 2017). I'm in Chapter 2, and I know that there is scientific dissemination of idea of geons in this book because these are mentioned in several pages from the Index. $\endgroup$