Papers Motivated by Questions of Mine

The following papers of other people have been motivated by questions of mine:

Joachim Konig, A note on the product of two permutations of prescribed orders.
European Journal of Combinatorics 57 (2016), 50-56.
This paper solves Problem 18.49 posed by myself in the Kourovka Notebook,
and therefore also provides a complete answer to the question Order of products of elements in symmetric groups of mine on MathOverflow.
Leonardo Zapponi, Parametric solutions of Pell equations, 2015.
This paper answers the question Parametric solutions of Pell's equation of mine on MathOverflow.

Furthermore, the discussion initiated by my question Primes occurring as orders of elements of a finitely presented group on MathOverflow led to the addition of Section 5 to:

Main further contributors to the discussion were Francois G. Dorais, Benjamin Steinberg and Henry Wilton.