## Immersed free boundary minimal annuli

The Critical Catenoid is conjectured to be unique in the class of embedded free boundary minimal annuli in the unit ball. It is necessary to assume embeddedness here because there exist infinitely many free boundary minimal annuli with self-intersections.

### References

- I. Fernández, L. Hauswirth and P. Mira,
*Free Boundary Minimal Annuli Immersed in the Unit Ball*, Arch Rational Mech Anal 247, 108 (2023). - N. Kapouleas, P. McGrath,
*Free Boundary Minimal Annuli Immersed in the Unit 3-Ball*, preprint (arXiv:2212.09680).

prismatic symmetry of order 20

prismatic symmetry of order 28

prismatic symmetry of order 32

prismatic symmetry of order 36

prismatic symmetry of order 44

prismatic symmetry of order 48

prismatic symmetry of order 68

prismatic symmetry of order 68