The conjecture on obstructions to desingularizing Ricci solitons
Let be a Ricci soliton that is compact or has controlled asymptotics, such as cylindrical or conical asymptotics. Let denote the relevant obstruction matrix, and suppose
Ricci-soliton obstruction conjecture. Such cannot be the limit of smooth Ricci solitons in the pointed Gromov--Hausdorff sense.
This is proposed by analogy with known Einstein desingularization obstructions and would extend obstruction results to many Ricci solitons.
References
Primary source
Alix Deruelle and Tristan Ozuch, “Orbifold singularity formation along ancient and immortal Ricci flows”, arXiv:2410.16075 (2025).
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