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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.

169,291 papers · 148 categories

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7132026 · May 202619922001200920182026
48 results for CSL submanifolds

Paper studies rigid properties of closed CSL submanifolds in unit spheres.

problem Understanding geometric properties of closed CSL submanifolds in unit spheres.
method Analyzes the rigidity of closed CSL submanifolds in the unit sphere using geometric methods.
result Closed CSL submanifolds in S5\mathbb{S}^5 with specific properties are either totally geodesic or flat minimal Legendrian tori.

We present a Communication-efficient Surrogate Likelihood (CSL) framework for solving distributed statistical inference problems. CSL provides a communication-efficient surrogate to the global likelihood that can be used for low-dimensional estimation, high-dimensional regularized estimation and Bayesian inference. For…

2016-05-25abs ↗pdf ↗

CausalRegNet generates accurate data for gene perturbation experiments, improving CSL methods.

problem Assessing and selecting causal structure learning methods in gene perturbation experiments.
method CausalRegNet, a multiplicative effect structural causal model, generates accurate observational and interventional data.
result CausalRegNet generates more accurate distributions and scales better than current simulation frameworks.

Paper uses random projection to preserve subspace structure for efficient data analysis.

problem Efficiently analyzing data with low-dimensional structure.
method Compressed Subspace Learning (CSL) framework based on Johnson-Lindenstrauss property.
result Random projection preserves the UoS structure of data, enabling efficient analysis.

This paper connects Wasserstein distances to MMD norms for compressive statistical learning.

problem Comparing and controlling Wasserstein distances between probability distributions.
method Establishing conditions under which Wasserstein distances can be controlled by MMD norms.
result Introducing Wasserstein regularity for compressive statistical learning.

The paper classifies Willmore Legendrian surfaces in S^5 and studies their properties.

problem Classifying and understanding Willmore Legendrian surfaces in S^5.
method Using an equality from Luo's work, the authors relate Willmore Legendrian surfaces to contact stationary Legendrian surfaces and prove classification results.
result Classification of Willmore Legendrian spheres in S^5 and integral inequality for Willmore Legendrian surfaces.

The Restricted Boltzmann Machines (RBM) can be used either as classifiers or as generative models. The quality of the generative RBM is measured through the average log-likelihood on test data. Due to the high computational complexity of evaluating the partition function, exact calculation of test log-likelihood is ver…

2015-10-08abs ↗pdf ↗

Efficiently estimates SAGE values using causal structure learning.

problem Computational infeasibility of exact SAGE calculations.
method Uses causal structure learning to identify conditional independencies and accelerate SAGE approximation.
result Empirically demonstrates efficient and accurate estimation of SAGE values.

This paper surveys parallel submanifolds in Riemannian and pseudo-Riemannian manifolds.

problem Understanding parallel submanifolds in Riemannian and pseudo-Riemannian manifolds.
method Comprehensive survey of parallel submanifolds.
result Extrinsic invariants of parallel submanifolds do not vary from point to point.

The study characterizes submanifolds in product spaces.

problem Limited studies on pseudo-umbilical submanifolds.
method Using projections from product structure, conditions for submanifolds to be invariant, anti-invariant, or semi-invariant are derived.
result Necessary and sufficient conditions for pseudo-umbilical submanifolds in locally product Riemannian manifolds.

The paper finds many infinite-dimensional weakly reflective PF submanifolds in Hilbert spaces.

problem Minimal submanifolds in Hilbert spaces with reflective properties.
method Introduced weakly reflective PF submanifolds into Hilbert spaces and showed their existence.
result Existence of infinite-dimensional weakly reflective PF submanifolds in Hilbert spaces.

We introduce the notions of pointwise almost h-slant submanifolds and pointwise almost h-semi-slant submanifolds as a generalization of slant submanifolds, pointwise slant submanifolds, semi-slant submanifolds, and pointwise semi-slant submanifolds. We have characterizations and investigate the integrability of distrib…

2013-12-12abs ↗pdf ↗

The study explores properties of slant and semi-slant submanifolds in metallic Riemannian manifolds.

problem Characterizing and understanding slant and semi-slant submanifolds in metallic Riemannian manifolds.
method Characterizations and integrability conditions for distributions in semi-slant submanifolds.
result Examples of semi-slant submanifolds in metallic and Golden Riemannian manifolds are provided.

Study lightlike submanifolds in indefinite statistical manifolds, finding conditions and curvature expressions.

problem Characterize lightlike submanifolds in indefinite statistical manifolds.
method Analyze conditions for lightlike submanifolds to be lightlike statistical submanifolds, derive statistical sectional curvature, and investigate induced statistical Ricci tensor symmetry.
result Conditions for lightlike submanifolds to be lightlike statistical submanifolds and expressions for statistical sectional curvature and induced Ricci tensor symmetry.

Develops methods for computing conformal invariants of submanifolds.

problem Computing conformal invariants of submanifolds.
method Direct construction of extrinsic ambient space, global invariants of conformally compact minimal submanifolds, introduction of conformal submanifold scalars.
result Derives an explicit Gauss--Bonnet--Chern-type formula and proves a rigidity result.

Study attached submanifolds in solvmanifolds, generalizing symmetric space results.

problem Exploring submanifolds in non-symmetric spaces with unusual curvature properties.
method Generalizing Tamaru's construction to pseudo-Riemannian scalar products and root spaces.
result Ricci curvature restriction holds for attached submanifolds under specific algebraic conditions.

Study properties of hemi-slant submanifolds in metallic Riemannian manifolds.

problem Characterize hemi-slant submanifolds in metallic Riemannian manifolds.
method Characterizations and integrability conditions for distributions are derived.
result Examples of hemi-slant submanifolds in metallic and Golden Riemannian manifolds are provided.

The paper derives Chen inequalities for statistical submanifolds in cosymplectic manifolds.

problem Deriving Chen inequalities for statistical submanifolds in cosymplectic manifolds.
method Analyzing statistical cosymplectic manifolds and Legendrian submanifolds to derive Chen inequalities.
result Chen inequalities for statistical submanifolds in cosymplectic manifolds and Legendrian submanifolds are derived.

Study on deforming calibrated submanifolds with boundary constraints.

problem Deforming calibrated submanifolds with boundary constraints in Riemannian manifolds.
method Extends McLean's deformation theory for closed compact submanifolds to include boundaries.
result Results extend McLean's theory to include boundaries, allowing for more flexible submanifold deformations.

Introduces new lightlike submanifolds in indefinite Kaehler manifolds.

problem Characterizing and understanding new types of lightlike submanifolds.
method Definition and analysis of Screen Transversal Cauchy Riemann (STCR) lightlike submanifolds.
result Characterizes STCR lightlike submanifolds as umbrella of other types.

An n-dimensional submanifold X of a projective space P^N (C) is called tangentially degenerate if the rank of its Gauss mapping γ: X ---> G (n, N) satisfies 0 < rank γ< n. The authors systematically study the geometry of tangentially degenerate submanifolds of a projective space PN(C)P^N (\mathbf{C}). By means of the foca…

2000-02-11abs ↗pdf ↗

Proves Frankel theorem for generic submanifolds in Sasakian manifolds.

problem Intersection properties of generic submanifolds in Sasakian manifolds.
method Introduces a weaker notion of generic submanifolds and proves Frankel theorem under specific conditions.
result Derives topological information about generic submanifolds in Sasakian space forms.

The paper studies λλ-submanifolds in Gauss spaces and proves theorems for complete proper ones.

problem Understanding λλ-submanifolds in Gauss spaces and their properties.
method Using divergence type theorems and Simons' identities, the authors prove theorems for complete proper λλ-submanifolds.
result Proves halfspace and gap theorems for complete proper λλ-submanifolds, generalizing previous results.

Study on special null submanifolds in indefinite Sasakian manifolds.

problem Characterizing null submanifolds in indefinite Sasakian manifolds.
method Proving properties of screen conformal null submanifolds and defining a new class.
result Existence of contact screen conformal rr-null submanifolds in indefinite Sasakian space forms.

In this paper, invariant submanifolds of a generalized Kenmotsu manifold are studied. Necessary and sufficient conditions are given on a submanifold of a generalized Kenmotsu manifold to be an invariant submanifold.In this case, we investigate further properties of invariant submanifolds of \ a generalized Kenmotsu man…

2014-10-17abs ↗pdf ↗

Study on biwarped product submanifolds in Kähler manifolds, proving their existence and characterizing them.

problem Existence and characterization of biwarped product submanifolds in Kähler manifolds.
method Analyzing multiply warped product submanifolds, providing examples, and establishing inequalities.
result Existence and characterization of non-trivial biwarped product submanifolds in Kähler manifolds.

The paper studies a new type of submanifolds in product spaces.

problem Characterizing and understanding warped product pointwise bi-slant submanifolds.
method Introduced and studied warped product pointwise bi-slant submanifolds of locally product Riemannian manifolds.
result Characterization results and non-trivial examples of these submanifolds.

Study on warped product pointwise semi-slant submanifolds in Sasakian and cosymplectic manifolds.

problem Investigate the geometry of pointwise semi-slant submanifolds and their warped products.
method Using the notion of pointwise slant submanifolds, investigate the geometry of pointwise semi-slant submanifolds and their warped products in Sasakian and cosymplectic manifolds.
result Prove the existence of no proper pointwise semi-slant warped product submanifolds other than contact CR-warped products in Sasakian manifolds.

Diffeological submanifolds are a new type of submanifold in manifold theory.

problem Defining and understanding different types of submanifolds in manifold theory.
method Introducing diffeological submanifolds and comparing them with other types of submanifolds.
result A diffeological submanifold can be included in a manifold without being an immersion.