activity
20182026
most citedThe Gromov-Lawson-Chernysh surgery theorem

25 citations · 50 across the 15 of their papers we have counts for

collaborators

15 papers

math.DG2026

Spaces of metrics with positive spectral scalar curvature

Gioacchino Antonelli, Georg Frenck, Bernhard Hanke

Let and let be a closed connected smooth manifold. Let be the space of smooth Riemannian metrics on for which the generalized conformal Laplace oper…

math.DG2026

Scalar Curvature Rigidity for Products of convex Hypersurfaces and even dimensional Manifolds

Georg Frenck, Thomas Schick, Lukas Schönlinner

We give a proof of scalar curvature rigidity in the spirit of Llarull and Goette-Semmelmann for products of strictly convex hypersurfaces in Euclidean space and nonnegatively curve…

math.DG2026

The doubling conjecture for positive scalar curvature

Georg Frenck

The doubling conjecture predicts that a manifold admits positive scalar curvature with mean convex boundary if and only if its double admits positive scalar curvature. We show that…

math.DG2026

The lock principle for scalar curvature

Georg Frenck, Bernhard Hanke, Sven Hirsch

We prove a Riemannian positive mass theorem for asymptotically flat spin manifolds with hypersurface singularities. Unlike earlier results, some components of the singular set may…

math.DG2026

Surgery and total mean curvature

Georg Frenck, Bernhard Hanke, Sven Hirsch

We prove Gromov's conjecture on the total mean curvature of fill-ins in various cases. Our methods are based on surgery to reduce the statement to fill-ins of spheres, which can be…

math.DG2024

Positive scalar curvature with point singularities

Simone Cecchini, Georg Frenck, Rudolf Zeidler

We show that in every dimension , there exists a smooth closed manifold which does not admit a smooth positive scalar curvature ("psc") metric, but admits an $\…

math.DG2022

Spaces of Positive Scalar Curvature metrics on totally nonspin Manifolds with spin boundary

Georg Frenck

In this article we study the space of positive scalar curvature metrics on totally nonspin manifolds with spin boundary. We prove that for such manifolds of certain dimensions, tho…

math.GT2021

Sphericity of -classes and positive curvature via block bundles

Georg Frenck

Given a simply connected manifold , we completely determine which rational monomial Pontryagin numbers are attained by fiber homotopy trivial -bundles over the -sphere, pr…

math.DG2021

Diffeomorphisms and positive curvature

Georg Frenck

We prove the existence of elements of infinite order in the homotopy groups of the spaces and of positive Ricci and positive secti…

math.DG2020★ 3 cited

Spaces of positive intermediate curvature metrics

Georg Frenck, Jan-Bernhard Kordaß

In this paper we study spaces of Riemannian metrics with lower bounds on intermediate curvatures. We show that the spaces of metrics of positive p-curvature and k-positive Ricci cu…

math.DG2020★ 5 cited

Bundles with non-multiplicative -genus and spaces of metrics with lower curvature bounds

Georg Frenck, Jens Reinhold

We construct smooth bundles with base and fiber products of two spheres whose total spaces have non-vanishing -genus. We then use these bundles to locate non-trivial ratio…

math.DG2020

Cohomogeneity One Manifolds and Homogeneous Spaces of Positive Scalar Curvature

Georg Frenck, Fernando Galaz-Garcia, Philipp Reiser

We characterize cohomogeneity one manifolds and homogeneous spaces with a compact Lie group action admitting an invariant metric with positive scalar curvature.

math.GT2020★ 4 cited

H-Space structures on spaces of metrics of positive scalar curvature

Georg Frenck

We construct and study an -space multiplication on for manifolds which are nullcobordant in their own tangential -type. This is applied to give a rigidi…

math.AT2019★ 13 cited

The action of the mapping class group on metrics of positive scalar curvature

Georg Frenck

We present a rigidity theorem for the action of the mapping class group on the space of metrics of positive scalar curvature for high dim…

math.DG2018★ 25 cited

The Gromov-Lawson-Chernysh surgery theorem

Johannes Ebert, Georg Frenck

In this article, we give a complete and self--contained account of Chernysh's strengthening of the Gromov--Lawson surgery theorem for metrics of positive scalar curvature. No claim…