Answers are grounded in this paper and cite their sources.
J. B. McLEOD; ON AN INFINITE SET OF NON-LINEAR DIFFERENTIAL EQUATIONS, The Quarterly Journal of Mathematics, Volume 13, Issue 1, 1 January 1962, Pages 119–128,
No takes yet. Share an insight, caveat, or question.
John Mcleod (1962) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: