activity
20132026
most citedEigenvalue estimates for a class of elliptic differential operators on compact manifolds

9 citations · 22 across the 16 of their papers we have counts for

collaborators

17 papers

math.DG2026

Asymptotically conical shrinking ends of the -mean curvature flow: rotational construction and uniqueness

Hilário Alencar, Márcio Batista, Gregório Silva Neto

For we study shrinking self-similar ends of the -mean curvature flow, with , that are asymptotic to a cone. For every rotational…

math.DG2024

Gap theorems for complete self-shrinkers of -mean curvature flows

Hilário Alencar, G. Pacelli Bessa, Gregório Silva Neto

In this paper, we prove gap results for complete self-shrinkers of the -mean curvature flow involving a modified second fundamental form. These results extend previous results f…

math.DG2024

On -invariant constant mean curvature hypersurfaces with singularity

Hilário Alencar, Ronaldo Garcia, Gregório Silva Neto

We classify the -invariant constant mean curvature hypersurfaces with singularity at the origin, solving a conjecture of Wu-yi Hsiang.

math.DG2023

Classification of ruled surfaces as homothetic self-similar solutions of the inverse mean curvature flow in the Lorentz-Minkowski 3-space

Gregório Silva Neto, Vanessa Silva

In this paper, we classify the nondegenerate ruled surfaces in the three-dimensional Lorentz-Minkowski space that are homothetic self-similar solutions for the inverse mean curvatu…

math.DG2023★ 3 cited

Ruled surfaces as translating solitons of the inverse mean curvature flow in the three-dimensional Lorentz-Minkowski space

Gregório Silva Neto, Vanessa Silva

In this paper, we classify the nondegenerate ruled surfaces in the three-dimensional Lorentz-Minkowski space that are translating solitons for the inverse mean curvature flow. In p…

math.DG2022

On the spectrum and index of expanding and translating solitons of the mean curvature flow in

Hilário Alencar, Gregório Silva Neto

In this paper we prove that two-dimensional translating solitons in with finite -index are homeomorphic to a plane or a cylinder and that a two-dimensional self-e…

math.DG2022

Hopf type theorems for surfaces in the de Sitter-Schwarzschild and Reissner-Nordstrom manifolds

Hilário Alencar, Gregório Silva Neto

In 1951, H. Hopf proved that the only surfaces, homeomorphic to the sphere, with constant mean curvature in the Euclidean space are the round (geometrical) spheres. These results w…

math.DG2022

Poincaré type inequality for hypersurfaces and rigidity results

Hilário Alencar, Márcio Batista, Gregório Silva Neto

In this article, under mild constraints on the sectional curvature, we exploit a divergence formula for symmetric endomorphisms to deduce a general Poincaré type inequality. We app…

math.DG2021

Stability properties of complete self-shrinking surfaces in

Hilário Alencar, Gregório Silva Neto, Detang Zhou

This paper studies rigidity for immersed self-shrinkers of the mean curvature flow of surfaces in the three-dimensional Euclidean space We prove that an immersed se…

math.DG2020

Rigidity of complete self-shrinkers whose tangent planes omit a nonempty set

Hilário Alencar, Manuel Cruz, Gregório Silva Neto

In this paper we prove rigidity results for the sphere, the plane and the right circular cylinder as the only self-shrinkers satisfying a classic geometric assumption, namely the u…

math.DG2020★ 3 cited

Hopf type Theorem for Self-Shrinkers

Hilário Alencar, Gregório Silva Neto, Detang Zhou

In this paper, we prove that a two-dimensional self-shrinker, homeomorphic to the sphere, immersed in the three dimensional Euclidean space is a round sphere, provided its mean cur…

math.DG2016★ 2 cited

Isoperimetric inequalities and monotonicity formulas for submanifolds in warped product manifolds

Hilário Alencar, Gregório Silva Neto

In this paper we first prove some linear isoperimetric inequalities for submanifolds in the de Sitter-Schwarzschild and Reissner-Nordstrom manifolds. Moreover, the equality is atta…

math.DG2015★ 2 cited

Stable hypersurfaces with zero scalar curvature in Euclidean space

Hilário Alencar, Manfredo do Carmo, Gregório Silva Neto

In this paper we prove some results concerning stability of hypersurfaces in the four dimensional Euclidean space with zero scalar curvature. First we prove there is no complete st…

math.DG2015

Monotonicity formula for complete hypersurfaces in the Hyperbolic space and applications

Hilário Alencar, Gregório Silva Neto

In this paper we prove a monotonicity formula for the integral of the mean curvature for complete and proper hypersurfaces of the hyperbolic space and, as consequences, we obtain a…

math.DG2015★ 1 cited

Poincaré and mean value inequalities for hypersurfaces in Riemannian manifolds and applications

Hilário Alencar, Gregório Silva Neto

In the first part of this paper we prove some new Poincaré inequalities, with explicit constants, for domains of any hypersurface of a Riemannian manifold with sectional curvatures…

math.DG2013★ 2 cited

On Stable Hypersurfaces with Vanishing Scalar Curvature

Gregório Silva Neto

We will prove that \emph{there are no stable complete hypersurfaces of with zero scalar curvature, polynomial volume growth and such that …

math.DG2013★ 9 cited

Eigenvalue estimates for a class of elliptic differential operators on compact manifolds

Hilário Alencar, Gregório Silva Neto, Detang Zhou

The motivation of this paper is to study a second order elliptic operator which appears naturally in Riemannian geometry, for instance in the study of hypersurfaces with constant $…