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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 projective flows

Space of Zoll Finsler metrics on projective plane deformation retracts to round metric.

problem Understanding the structure of Zoll Finsler metrics on projective planes.
method Geodesic flow deformation and curvature flow.
result Space of Zoll Finsler metrics on projective plane is connected and deformation retracts to the round metric.

Classifies geodesic flows on projective plane with potential field.

problem Classifying geodesic flows on a projective plane with a potential field.
method Liouville classification and calculation of Fomenko--Zieschang invariants.
result All Fomenko--Zieschang invariants of the system are calculated.

Geodesic flows on Kähler manifolds are quantum integrable when metrics are c-projectively equivalent.

problem Quantum integrability of geodesic flows on Kähler manifolds under c-projective equivalence.
method Construction of Poisson-commuting integrals of motion and their quantum counterparts.
result The geodesic flow's integrals of motion commute as quantum operators, leading to separation of variables in Schrödinger's equation.

In this paper, we study a family of curves on S2S^2 that defines a two-dimensional smooth projective plane. We use curve shortening flow to prove that any two-dimensional smooth projective plane can be smoothly deformed through a family of smooth projective planes into one which is isomorphic to the real projective pla…

2013-08-16abs ↗pdf ↗

Consider EE a holomorphic vector bundle over a projective manifold XX polarized by an ample line bundle LL. Fix kk large enough, the holomorphic sections H0(ELk)H^0(E\otimes L^k) provide embeddings of XX in a Grassmanian space. We define the \textit{balancing flow for bundles} as a flow on the space of projectively equ…

2014-11-11abs ↗pdf ↗

We give the complete classification of regular projectively Anosov flows on closed three-dimensional manifolds. More precisely, we show that such a flow must be either an Anosov flow or decomposed into a finite union of T2×IT^2 \times I-models. We also apply our method to rigidity problems of some group actions.

2005-04-11abs ↗pdf ↗

The paper studies mean curvature flow of submanifolds in complex projective spaces.

problem Investigating mean curvature flow of submanifolds in complex projective spaces.
method Proving convergence to a round point or totally geodesic submanifold under pinching conditions.
result Obtained a new differentiable sphere theorem for submanifolds in complex projective spaces.

Study on Gauduchon manifolds finds metrics for projectively flat bundles.

problem Existence of Hermitian-Poisson metrics on projectively flat bundles.
method Heat flow techniques and continuity methods.
result Established a correspondence between Hermitian-Poisson metrics and semi-simplicity.

Study of intersections in Hamiltonian orbits on cotangent bundles.

problem Understanding intersections of projected Hamiltonian orbits in cotangent bundles.
method Generic submersive level set analysis, multi-jet transversality theorem.
result Projected Hamiltonian orbits have discrete intersections, which can be perturbed away under certain conditions.

Study proves projective Anosov subgroups lead to mixing flows in specific spaces.

problem Understanding mixing properties of flows on specific geometric spaces.
method Constructing non-empty domain of discontinuity in homogeneous space, using spectral estimates for transfer operators.
result Exponential mixing, spectral gap, and meromorphic continuation of zeta functions established.

We introduce cylindrical projections to simulate infinite-dimensional occupation flows of diffusions.

problem Computational intractability of infinite-dimensional occupation flows of diffusions.
method Introduce cylindrical projections to approximate the occupation flow via a finite-dimensional system.
result Strong convergence of cylindrical projections to the initial process with derived rates.

Study mean curvature flow of high codimension submanifolds in complex projective space.

problem Analyse mean curvature flow of high codimension submanifolds in complex projective space.
method Establish codimension estimate, prove convergence to smooth limiting flow, and prove decay estimate.
result Prove existence of limiting flow under cylindrical type pinching.

Proposes a Carbon Equivalence Principle for financial products to align incentives and drive sustainability.

problem Align financial market incentives with carbon emissions to limit global warming.
method Introduces a Carbon Equivalence Principle requiring financial products to describe equivalent carbon flows alongside cash flows.
result Transparency of carbon flows in financial products can align incentives and reduce future costs, necessitating project re-structuring and financial net-zero designs.

Study of 2D metrics with one projective symmetry leading to superintegrable systems.

problem Classifying 2D metrics with one projective symmetry and their integrable properties.
method Analyzing projective connections, partial differential equations, and geodesic flows.
result Superintegrable systems are parametrized by the 2-sphere, except for 6 exceptional points.

We study the Kähler-Ricci flow on a class of projective bundles P(OΣL)\mathbb{P}(\mathcal{O}_Σ\oplus L) over compact Kähler-Einstein manifold ΣnΣ^n. Assuming the initial Kähler metric ω0ω_0 admits a U(1)-invariant momentum profile, we give a criterion, characterized by the triple (Σ,L,[ω0])(Σ, L, [ω_0]), under which the $\mathbb{P…

2011-04-20abs ↗pdf ↗

Paper defines the payback period for nonconventional cash flows using axioms.

problem Defining the payback period for nonconventional cash flows is challenging.
method Used axiomatic approach to define the payback period.
result The last break-even point of the project balance is the only definition consistent with axioms.

PL-MCMC samples from normalizing flows' conditional distributions.

problem Sampling from complex conditional distributions learned by normalizing flows.
method Metropolis-Hastings implementation of PL-MCMC.
result PL-MCMC asymptotically samples from exact conditional distributions.

We consider the evolution by mean curvature flow of Lagrangian submanifolds of the complex projective space CP^n. We prove that, if the initial value satisfies a suitable pinching condition, then the flow exists for all times and the manifold converges to a totally geodesic submanifold. As a corollary, we obtain that a…

2013-10-10abs ↗pdf ↗

Establishes K"ahler-Ricci flow on log canonical varieties.

problem Existence and convergence of K"ahler-Ricci flow on varieties with log canonical singularities.
method Generalizes previous results for klt singularities, proves convergence, and constructs solutions with flips.
result Existence and convergence of K"ahler-Ricci flow on semi-log canonical models.

We show that the scalar curvature is uniformly bounded for the normalized Kahler-Ricci flow on a Kahler manifold with semi-ample canonical bundle. In particular, the normalized Kahler-Ricci flow has long time existence if and only if the scalar curvature is uniformly bounded, for Kahler surfaces, projective manifolds o…

2011-11-24abs ↗pdf ↗

We study the behaviour of the Kähler-Ricci flow on projective bundles. We show that if the initial metric is in a suitable Kähler class, then the fibers collapse in finite time and the metrics converge subsequentially in the Gromov-Hausdorff sense to a metric on the base.

2011-07-11abs ↗pdf ↗

New findings on geometric flows and equidistribution in Hilbert geometry.

problem Characterizing dynamical and counting results in Hilbert geometry.
method Study of dynamical and counting results in rank-one properly convex projective structures with Hilbert metrics.
result Hilbert geodesic flow is strongly mixing and orbits and primitive closed geodesics equidistribute.

We study the local geometry of irreducible parabolic geometries admitting strongly essential flows; these are flows by local automorphisms with higher-order fixed points. We prove several new rigidity results, and recover some old ones for projective and conformal structures, which show that in many cases the existence…

2014-10-17abs ↗pdf ↗

An investor is estimating net present value of a firm project and performs risk analysis. Usually it is created portfolio hierarchies and make comparison of variants of project based on these hierarchies. Then one finds that portfolio which corresponds to the particular needs of individual groups within the firm. We ha…

2005-09-13abs ↗pdf ↗