collaborators

7 papers

math.DG2026

Topology of minimal surfaces in the sphere from capillarity

Benjy Firester, Raphael Tsiamis

We present a general construction of embedded minimal and constant mean curvature surfaces in and one-phase free boundaries joined by a smooth interpolation by capil…

math.DG2026

New minimal surfaces in the sphere from capillary minimal cones

Benjy Firester, Raphael Tsiamis

For every , we construct minimal embeddings of in by doubling the links of free-boundary…

math.DG2026

Area-minimizing capillary cones

Benjy Firester, Raphael Tsiamis, Yipeng Wang

We construct non-flat minimal capillary cones with bi-orthogonal symmetry groups for any dimension and contact angle. These cones interpolate between rescalings of a singular solut…

math.AP2026

Stability inequalities for one-phase cones

Benjy Firester, Raphael Tsiamis, Yipeng Wang

We obtain strict stability inequalities for homogeneous solutions of the one-phase Bernoulli problem. We prove that in dimension and above, cohomogeneity one solutions with bi-…

math.AP2025

Homogeneous optimal transport maps between oblique cones

Tristan C. Collins, Benjy Firester, Freid Tong

We construct homogeneous optimal transport maps for the quadratic cost between convex cones with homogeneous, possibly degenerate, densities when the cones satisfy an obliqueness c…

math.AP2025

On a general class of free boundary Monge-Ampère equations

Tristan C. Collins, Benjy Firester

We solve a general class of free boundary Monge-Ampère equations given by \[ \det D^2u = λ\dfrac{f(-u)}{g(u^\star)h(\nabla u)}χ_{\{u<0\}} \; \text{ in } \mathbb{R}^n, \quad \nab…