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78156233311 · May 202619922001200920172026
48 results for positive mass theorems

W. Simon proved a conformal positive mass theorem, which was used to prove uniqueness of black holes later. In this note, we will generalize Simon's conformal positive mass theorem in two directions. First we will consider spacetime version of conformal positive mass theorems on asymptotically flat initial data set. Ne…

2016-07-04abs ↗pdf ↗

Positive mass theorem for non-smooth metrics on flat manifolds with corners.

problem Proving a positive mass theorem for non-smooth metrics on asymptotically flat manifolds with non-compact boundary.
method Proves a positive mass theorem for metrics that are only continuous across a compact hypersurface.
result Obtains a positive mass theorem on manifolds with non-compact corners.

Unified positive mass theorem and Dirac operator study on weighted manifolds.

problem Establishing a unified positive mass theorem for weighted manifolds and smooth metric measure spaces.
method Analyzing Dirac operators on warped product manifolds and applying results to the positive mass theorem.
result Equivalence of weighted positive mass theorem to usual positive mass theorem.

Proves positive mass theorem on conical manifolds with small angles.

problem Proving the positive mass theorem on conical manifolds with small cone angles.
method Analyzes conical manifolds with small cone angles, assuming spin structure and locally conformal flatness.
result Proves the positive mass theorem under specified conditions.

Proves positive mass theorem for AF spin manifolds with conical singularities.

problem Proving the positive mass theorem for singular metrics on AF manifolds.
method Analyzes AF spin manifolds with isolated conical singularities, allowing topological singularities.
result Proves the positive mass theorem for AF spin manifolds with conical singularities.

Explains how to prove positive mass theorem with boundary in dimensions less than 8.

problem Proving the positive mass theorem with boundary conditions.
method Uses established results to prove various versions of the theorem.
result Various versions of the positive mass theorem are proven for initial data sets with boundary in dimensions less than 8.

The paper proves a discrete positive mass theorem for graphs.

problem Formulating and proving a discrete positive mass theorem for graphs.
method Introducing asymptotically flat graphs, defining ADM mass, and using discrete harmonic functions.
result An asymptotically flat graph with non-negative Ricci curvature is isomorphic to the standard grid graph.

Proves positive mass theorem for spin initial data sets with arbitrary ends and dominant energy shields.

problem Proving the positive mass theorem for spin initial data sets with various ends and energy shields.
method Modification of Witten's approach involving an additional independent timelike direction in the spinor bundle.
result Positive mass theorem for spin initial data sets with arbitrary ends and dominant energy shields.

The Positive Mass Theorem for special singular initial data.

problem Proving the positive mass theorem for data with a codimension one singularity.
method Using asymptotically flat spin initial data sets with matching Bartnik data condition involving spacetime rotations.
result Established a spacetime positive mass theorem and rigidity statement.

Solves Jang equation for hyperboloidal data, proving positive mass theorem.

problem Proving the positive mass theorem in asymptotically hyperbolic 3D spacetimes.
method Solves Jang equation with hyperboloidal initial data, applies to positive mass theorem.
result Non-spinor proof of positive mass theorem in 3D asymptotically hyperbolic spacetimes.

Researchers prove positive mass theorem for manifolds with arbitrary ends.

problem Proving the positive mass theorem for manifolds with non-compact ends.
method Developed techniques to handle non-compact singular sets and used Wloc1,pW^{1,p}_{\mathrm{loc}} metrics.
result Established positive mass theorem for C0C^0 arbitrary ends with Wloc1,pW^{1,p}_{\mathrm{loc}} metrics.

Stability of positive mass theorem for hyperbolic manifolds studied.

problem Stability of the positive mass theorem for asymptotically hyperbolic manifolds.
method Adapted intrinsic flat distance approach to show stability for a class of manifolds.
result Stability of the positive mass theorem for a class of asymptotically hyperbolic graphical manifolds.

The paper proves density and positive mass theorems for incomplete manifolds.

problem Proving density and positive mass theorems for manifolds with incomplete ends.
method Using harmonic asymptotics and quantitative positive mass theorem improvements.
result Improved quantitative positive mass theorem in dimensions 3 to 7.

We prove a positive mass theorem for continuous Riemannian metrics in the Sobolev space Wloc2,n/2(M)W^{2, n/2}_{\mathrm{loc}}(M). We argue that this is the largest class of metrics with scalar curvature a positive a.c. measure for which the positive mass theorem may be proved by our methods.

2012-05-07abs ↗pdf ↗

The paper extends the spacetime positive mass theorem to multiple time dimensions.

problem Proving the nonnegativity of mass in spacetimes with multiple time dimensions.
method Generalizing the spacetime positive mass theorem to include multiple time dimensions and showing mass nonnegativity through energy inequalities.
result Equality in the energy inequality implies a foliation by flat submanifolds.

Proves spacetime positive mass theorem for spin initial data sets with arbitrary ends.

problem Proving the spacetime positive mass theorem for specific spacetime configurations.
method Solving a mixed boundary value problem for the Dirac-Witten operator with a Callias potential.
result Established spacetime positive mass theorem for asymptotically flat spin initial data sets with arbitrary ends.

Paper proves stability of positive mass theorem for specific types of manifolds.

problem Stability of positive mass theorem for compact graphical manifolds.
method Used Federer--Fleming flat distance and static quasi-local Brown-York energy.
result Proved stability of positive mass theorem for compact (locally) hyperbolic graphical manifolds.

New positive mass theorem for hyperbolic 3-manifolds using Green functions.

problem Proving a positive mass theorem for asymptotically hyperbolic 3-manifolds.
method Using a monotonicity formula for the Green function of the Laplace operator.
result Established a new positive mass theorem for three-dimensional manifolds.

New mass inequalities and proofs for causal variational principles.

problem Proving new mass inequalities for causal variational principles.
method Proved a new inequality for minimizers of causal variational principles and applied it to prove the positive mass theorem.
result Introduced a positive quasilocal mass and proved new mass inequalities.

Proves positive mass theorems for specific ALF and ALG manifolds.

problem Proving positive mass theorems for ALF and ALG manifolds.
method Reduces the problem to non-existence of positive scalar curvature metrics on closed manifolds.
result Shows that incompressible conditions for S1\mathbb S^1 and T2\mathbb T^2 are sufficient for nonnegativity of mass.

Solves Jang's equation for hyperboloidal data in 4-7 dimensions, proving positive mass theorem.

problem Proving the positive mass theorem for asymptotically hyperbolic initial data sets in specific dimensions.
method Solves Jang's equation with hyperboloidal initial data in dimensions 4-7.
result Non-spinor proof of the positive mass theorem in 4-7 dimensions.

Built on a recent work of Almaraz, Barbosa, de Lima on positive mass theorems on asymptotically flat manifods with a noncompact boundary, we apply free boundary minimal surface techniques to prove their positive mass theorem and study the existence of positive scalar curvature metrics with mean convex boundary on a con…

2018-11-15abs ↗pdf ↗

New proof removes decay assumptions for spacetime positive mass theorem.

problem Proving the rigidity of the spacetime positive mass theorem without additional decay assumptions.
method Uses spacetime harmonic functions and Liouville's theorem, and an alternative proof based on Killing development.
result Removes additional decay assumptions for the spacetime positive mass theorem.

The paper proves a spacetime positive mass theorem for singular initial data sets.

problem Proving the positive mass theorem for initial data sets with corners.
method Extending Hirsch-Kazaras-Khuri's method to singular cases using Hirsch-Miao-Tsang ideas.
result Integral lower bound on spacetime mass and characterisation of zero mass.

Extends positive mass theorem to arbitrary dimensions using a new inductive scheme.

problem Overcoming singularities in the Schoen-Yau proof for arbitrary dimensions.
method Inductive scheme combining shielding principle, conformal blow-up, and Cheeger-Naber bound.
result Proof of positive mass theorem in arbitrary dimensions.