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20242026
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math.DG2026

Equivariant Allen--Cahn Solutions and the Existence of Cohomogeneity Minimal Surfaces

Rayssa Caju, Pedro Gaspar, Jared Marx-Kuo

We develop a regularity theory for equivariant Allen--Cahn solutions on closed Riemannian manifolds with a Lie group acting isometrically. When the cohomogeneity of the action is b…

math.DG2026

Multiple Blow-Up Phenomena for -Curvature in High Dimensions

Rayssa Caju, Almir Silva Santos

Let be a closed Riemannian manifold of dimension with positive Yamabe invariant and positive fourth-order invariant . We show that,…

math.DG2025

Quantitative Stability for Yamabe minimizers on manifolds with boundary

Benjamín Borquez, Rayssa Caju, Hanne Van Den Bosch

This paper addresses the quantitative stability for a Yamabe-type functional on compact manifolds with boundary introduced by Escobar. Minimizers of the functional correspond to sc…

math.DG2025

An end to end gluing construction for metrics of constant Q-curvature

A. Sophie Aiken, Rayssa Caju, Jesse Ratzkin +1

We produce many new complete, constant Q-curvature metrics on finitely punctured spheres by gluing together known examples. In our construction we truncate one end of each summand…

math.DG2024

Blow-up analysis of Large conformal metrics with prescribed Gaussian and geodesic curvatures

Rayssa Caju, Tiarlos Cruz, Almir Silva Santos

Consider a compact Riemannian surface with nonempty boundary and negative Euler characteristic. Given two smooth non-constant functions in and in w…