We give an example of a smooth surface of revolution for which all circles about the origin are strictly stable for fixed area but small isoperimetric regions are nearly round discs away from the origin.
@article{bwmeta1.element.doi-10_1515_agms-2016-0014, author = {Frank Morgan}, title = {Isoperimetric Symmetry Breaking: a Counterexample to a Generalized Form of the Log-Convex Density Conjecture}, journal = {Analysis and Geometry in Metric Spaces}, volume = {4}, year = {2016}, zbl = {1355.53005}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_1515_agms-2016-0014} }
Frank Morgan. Isoperimetric Symmetry Breaking: a Counterexample to a Generalized Form of the Log-Convex Density Conjecture. Analysis and Geometry in Metric Spaces, Tome 4 (2016) . http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_1515_agms-2016-0014/