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A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,742 papers · 148 categories

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48 results for Scalar curvatures

The curvature-dimension condition implies a new weighted scalar curvature.

problem Studying the properties of the nn-volumic scalar curvature.
method Using the curvature-dimension condition mCD(κ,n){ m CD}(κ,n) and smGH-convergence.
result The stability of nn-volumic scalar curvature κ\geq κ under smGH-convergence.

The paper examines Randers metrics with isotropic scalar curvature properties.

problem Characterizing Randers metrics with specific scalar curvature properties.
method Analyzes properties of Randers metrics with isotropic scalar curvature.
result Proves that Randers metrics with weakly isotropic scalar curvature have isotropic SS-curvature and are either Minkowskian or Riemannian.

The aim of the present paper is to provide an \emph{intrinsic} investigation of special Finsler spaces of HpH_{p}-scalar curvature and of HpH_{p}\,-constant curvature. Characterizations of such spaces are shown. Sufficient condition for Finsler space of HpH_{p}-scalar curvature to be of perpendicular scalar curvature i…

2018-07-06abs ↗pdf ↗

Quaternion-Kähler manifolds' stability and rigidity of scalar curvature studied.

problem Stability and rigidity of scalar curvature in quaternion-Kähler manifolds.
method Analysis of stability and rigidity conditions using Einstein manifold properties.
result Quaternion-Kähler manifolds of negative scalar curvature are stable and scalar curvature rigid.

In this paper, we show that steady or shrinking complete gradient Yamabe solitons with finite total scalar curvature and non-positive Ricci curvature are Ricci flat. Moreover, under certain pinching condition for Ricci curvature, we show that steady or shrinking complete gradient Yamabe solitons with finite total scala…

2017-11-21abs ↗pdf ↗

The paper explores conditions for positive scalar curvature on manifolds with boundaries and their doubles.

problem Conditions for positive scalar curvature on manifolds with boundaries and their doubles.
method Analyzes the relationship between boundary conditions and positive scalar curvature metrics on manifolds and their doubles.
result Provides conditions for positive scalar curvature metrics on manifolds with boundaries and their doubles.

The paper establishes bounds on scalar curvature on asymptotically flat manifolds.

problem Establishing scalar curvature bounds on asymptotically flat manifolds.
method Using Ricci-DeTurck flow and distributional scalar curvature, the paper derives bounds on scalar curvature.
result The scalar curvature lower bound under Ricci-DeTurck flow depends on the scalar curvature lower bound in the β-weak sense and time.

Sharp bounds on scalar curvature spectrum and rigidity theorems.

problem Understanding scalar curvature bounds and rigidity on manifolds.
method Sharp upper bounds for the bottom spectrum of the Beltrami Laplacian, scalar curvature rigidity theorem.
result Sharp upper bound for the bottom spectrum of the Beltrami Laplacian and scalar curvature rigidity theorem.

Study finds open manifolds without complete metrics with positive scalar curvature.

problem Topological obstruction to positive scalar curvature on open manifolds.
method Defined Schoen-Yau-Schick and weak Schoen-Yau-Schick manifolds to prove the absence of complete metrics with positive scalar curvature.
result Proved no complete metric with positive scalar curvature on open Schoen-Yau-Schick manifolds.

In this paper we investigate complete critical metrics of the L2L^{2}-norm of the scalar curvature. We prove that any complete critical metric with positive scalar curvature has constant scalar curvature and we characterize critical metrics with nonnegative scalar curvature in dimension three and four.

2012-04-12abs ↗pdf ↗

Study on scalar curvature deformations in pseudohermitian manifolds.

problem Deformation of scalar curvature in pseudohermitian manifolds.
method Analogy with Riemannian manifolds, introduction of RR-singular spaces, stability conditions, partial infinitesimal rigidity.
result Partial infinitesimal rigidity result for scalar curvature of compact pseudohermitian manifolds.

Paper investigates prescribing Chern scalar curvatures on specific manifolds.

problem Prescribing Chern scalar curvatures on noncompact Hermitian manifolds with nonpositive curvatures.
method Establishes existence results and sufficient conditions for negative curvature metrics.
result Obtains sufficient conditions for the existence of a constant negative Chern scalar curvature metric.

The paper explores geometry and positive scalar curvature on non-compact manifolds.

problem Understanding the relationship between geometry and positive scalar curvature on non-compact manifolds.
method Analysis of volume growth, scalar curvature integral, and width in different dimensions.
result Proves minimal volume growth and integral of scalar curvature in three dimensions, and volume growth with stronger conditions in higher dimensions.

The paper classifies flag manifolds with specific isotropy components and finds conditions for Kähler-like scalar curvature.

problem Classifying flag manifolds with specific isotropy components and finding conditions for Kähler-like scalar curvature.
method Investigating invariant almost Hermitian structures on generalized flag manifolds with two or three irreducible components.
result Classification of flag manifolds admitting Kähler-like scalar curvature and conditions for such structures.

Develops scalar curvature in generalized Kahler geometry and shows constant scalar curvature on compact Lie groups.

problem Defines scalar curvature in generalized Kahler geometry.
method Introduces scalar curvature in terms of pure spinors formalism and develops a moment map framework.
result Scalar curvature is given by the moment map, generalizing results from ordinary Kahler geometry.

Survey of nonnegative scalar curvature sequences and their limits.

problem Understanding sequences of manifolds with nonnegative scalar curvature.
method Analyzing sequences of manifolds with nonnegative scalar curvature and proving convergence.
result Proved the GH and SWIF convergence of an extreme example.

We consider modified scalar curvature functions for Riemannian manifolds equipped with smooth measures. Given a Riemannian submersion whose fiber transport is measure-preserving up to constants, we show that the modified scalar curvature of the base is bounded below in terms of the scalar curvatures of the total space …

2005-04-20abs ↗pdf ↗

Estimates for scalar curvature equations on Kähler manifolds with singularities.

problem Developing estimates for scalar curvature equations with singular metrics.
method Estimates and Laplacian estimates for scalar curvature equations of degenerate Kähler metrics.
result Derivation of estimates for singular constant scalar curvature Kähler metrics and singular Kähler-Einstein metrics.

The paper explores constant holomorphic d-scalar curvature on specific manifolds.

problem Existence and prescription of constant holomorphic d-scalar curvature.
method Study of closed, connected almost Hermitian manifolds of dimension n6n\geq6.
result Obtained an application and variation formula for a conformal invariant.

Study of prescribing scalar curvature and mean curvature on compact manifolds with boundary.

problem Prescribing scalar curvature and mean curvature on compact manifolds with boundary.
method Introducing singular metrics inspired by previous work on closed manifolds, proving rigidity results for flat manifolds with totally geodesic boundary.
result Generic scalar-flat manifolds with minimal boundary can have scalar curvature and mean curvature prescribed simultaneously.