The regular-equilibrium forcing conjecture for glacial cycles
Consider the piecewise-smooth glacial cycles system, with a regular equilibrium or two regular equilibria located close to the discontinuity boundary. Regular-equilibrium forcing conjecture. Forcing the system with Milankovitch forcing results in an attracting periodic orbit. The source explicitly says that the conjecture is not yet formulated precisely and supplies no proof or resolution.
References
Primary source
Oleg Makarenkov and Esther Widiasih, “Bifurcation of Limit Cycles from a Fold-Fold Singularity in a Glacial Cycles Model”, arXiv:2511.02143 (2025).
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