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arXiv research

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.

169,341 papers · 148 categories

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48 results for scalar

The paper examines complete Yamabe solitons with finite total scalar curvature.

problem Characterizing complete Yamabe solitons with specific curvature properties.
method Analyzing steady or shrinking complete gradient Yamabe solitons with finite total scalar curvature and non-positive Ricci curvature.
result Steady or shrinking complete gradient Yamabe solitons with finite total scalar curvature and non-positive scalar curvature have zero scalar curvature.

The paper studies special Finsler spaces with HpH_{p}-scalar curvature.

problem Characterizing and investigating Finsler spaces with specific scalar curvatures.
method Intrinsic investigation and various conditions for transformations between Finsler spaces.
result Conditions for transforming Finsler spaces of scalar curvature to those of HpH_{p}-scalar curvature.

The paper explores time consistency for scalar multivariate risk measures in markets with transaction costs.

problem Time consistency of scalar multivariate risk measures in markets with transaction costs.
method Presented dual representations and derived an equivalent recursive formulation for multivariate scalar risk measures.
result Developed a direct notion of a 'moving scalarization' for scalar time consistency.

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.

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.

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.

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 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.

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.

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.

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 ↗

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 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.

Study non-positive scalar curvature on hyperbolic manifolds, finding necessary and sufficient conditions.

problem Finding metrics with non-positive scalar curvature on asymptotically hyperbolic manifolds.
method Analyzing the prescribed scalar curvature problem for non-positive scalar curvature on asymptotically hyperbolic manifolds.
result Obtained a necessary and sufficient condition for the existence of solutions.

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.

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.

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.

Researchers confirm scalar-flatness for critical metrics in 5-9 dimensions.

problem Verifying scalar-flatness for critical metrics in specific dimensions.
method Analyzing complete Riemannian manifolds with critical metrics of the L2L^2-scalar curvature functional.
result The conjecture that all complete noncompact critical metrics with finite energy are scalar-flat is confirmed for dimensions 5 to 9.

Summarizes geometric formulation of Einstein-Scalar-Maxwell theories.

problem Geometric formulation of Einstein-Scalar-Maxwell theories.
method Global geometric formulation using flat symplectic vector bundles.
result Describes scalar-electromagnetic symmetry group and Dirac quantization condition.

The study explores scalar curvatures on manifolds with boundary properties.

problem Understanding scalar curvatures on manifolds with boundary constraints.
method Presentation of problems and results related to scalar curvatures and mean curvatures of boundaries.
result Exploration of natural and artificial constructions in scalar curvature studies.

Obstructs complete metrics with positive scalar curvature on non-compact manifolds.

problem Obstructing complete metrics with positive scalar curvature on non-compact manifolds.
method Using minimal hypersurfaces and MOTS, the study provides topological obstructions and proves the Liouville theorem.
result The Liouville theorem for locally conformally flat n-manifolds of non-negative scalar curvature follows from the impossibility of positive scalar curvature metrics.

Let MM be a simply-connected closed manifold of dimension 5\geq 5 which does not admit a metric with positive scalar curvature. We give necessary conditions for MM to admit a scalar-flat metric. These conditions involve the first Pontrjagin class and the cohomology ring of MM. As a consequence any simply-connected …

2000-06-20abs ↗pdf ↗