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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.

168,657 papers · 148 categories

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4284126168 · Jun 202019922001200920172026
48 results for vector bundle comorphisms

We introduce the concept of a higher algebroid, generalizing the notions of an algebroid and a higher tangent bundle. Our ideas are based on a description of (Lie) algebroids as vector bundle comorphisms - differential relations of a special kind. In our approach higher algebroids are vector bundle comorphism between g…

2017-08-10abs ↗pdf ↗

This work explores higher-order algebroids via vector bundle comorphisms.

problem Generalizing concepts of higher-order tangent bundles and Lie algebroids.
method Introduces a vector bundle comorphism approach to describe higher-order algebroids.
result Establishes a one-to-one correspondence between higher-order Lie algebroids and specific algebraic structures.

We show that the path construction integration of Lie algebroids by Lie groupoids is an actual equivalence from the category of integrable Lie algebroids and complete Lie algebroid comorphisms to the category of source 1-connected Lie groupoids and Lie groupoid comorphisms. This allows us to construct an actual symplec…

2012-10-16abs ↗pdf ↗

Study sheaves of Lie-Rinehart algebras and their morphisms, generalizing Lie algebroid concepts.

problem Understanding sheaves of Lie-Rinehart algebras and their morphisms.
method Introduced morphisms and comorphisms, proved factorization theorems, and defined higher homotopy groups and groupoids.
result Sheaves of Lie-Rinehart algebras over smooth manifolds induce partitions into orbits of the fundamental groupoid.

Study of generalized vector bundles and their geometric tools.

problem Extension of differential geometric tools to infinite dimensional vector bundles.
method Analysis of automorphisms, frame bundle, connection 1-forms, and covariant derivatives in diffeological vector pseudo-bundles.
result Non-isomorphism between connection 1-forms and covariant derivatives in infinite dimensional cases.

This paper shows vector bundles and differential bundles are equivalent in smooth manifolds.

problem Characterizing vector bundles in smooth manifolds.
method Introducing differential bundles in a tangent category and proving equivalence with vector bundles in smooth manifolds.
result Differential bundles in smooth manifolds are equivalent to vector bundles.

The study of quotient structures in multi-graded bundles, including double vector bundles.

problem Understanding quotients of multi-graded bundles, especially double vector bundles.
method Analyzing quotients as towers of affine bundles and constructing normal bundles.
result Any quotient of multi-graded bundles fits into a tower of affine bundles.

This paper introduces \infty- and nn-fold vector bundles as special functors from the \infty- and nn-cube categories to the category of smooth manifolds. We study the cores and "n-pullbacks" of nn-fold vector bundles and we prove that any nn-fold vector bundle admits a non-canonical isomorphism to a decomposed …

2018-09-05abs ↗pdf ↗

Defines connections on parabolic vector bundles for Lie algebroids.

problem Characterizing parabolic vector bundles with Lie algebroid connections.
method Constructs Lie algebroid connections on parabolic vector bundles, uses Atiyah exact sequence.
result Characterizes stable Lie algebroid vector bundles with connections.

The paper extends positivity results from vector bundles to Kobayashi positive ones.

problem Extending positivity results from vector bundles to Kobayashi positive ones.
method Using convexity of Kobayashi positive Finsler metrics and duality for convex Finsler metrics.
result The quotient and tensor product of Kobayashi positive vector bundles are also Kobayashi positive.

In this study, we generalize double tangent bundles to double jet bundles. We present a secondary vector bundle structure on a 1-jet of a vector bundle. We show that 1-jet of a vector bundle carries two vector bundle structures, namely primary and secondary structures. We also show that the manifold charts induced by p…

2016-01-17abs ↗pdf ↗

In this paper, we construct a category of short exact sequences of vector bundles and prove that it is equivalent to the category of double vector bundles. Moreover, operations on double vector bundles can be transferred to operations on the corresponding short exact sequences. In particular, we study the duality theor…

2011-03-04abs ↗pdf ↗

The paper examines the limit of harmonic flow on flat vector bundles.

problem Understanding the limiting behavior of harmonic flow on flat complex vector bundles.
method Analyzes the harmonic flow and proves the limit is isomorphic to a graded flat complex vector bundle.
result The limit of the harmonic flow on flat complex vector bundles is isomorphic to a graded flat complex vector bundle.

Defines linear weightings for vector bundles and explores their applications.

problem Understanding and extending the concept of weightings in vector bundles.
method Constructs weighted normal bundles and deformation spaces; explains the relationship between weightings and differential operators.
result Captures the rescaled spinor bundle and related constructions.

Parseval frames can be thought of as redundant or linearly dependent coordinate systems for Hilbert spaces, and have important applications in such areas as signal processing, data compression, and sampling theory. We extend the notion of a Parseval frame for a fixed Hilbert space to that of a moving Parseval frame for…

2012-03-07abs ↗pdf ↗

New dHYM connections found on complex vector bundles.

problem Existence of dHYM connections on higher rank vector bundles.
method Constructing explicit non-trivial examples and providing algebraic conditions.
result First explicit non-trivial dHYM connections on higher rank holomorphic vector bundles.

A triple vector bundle is a cube of vector bundle structures which commute in the (strict) categorical sense. A grid in a triple vector bundle is a collection of sections of each bundle structure with certain linearity properties. A grid provides two routes around each face of the triple vector bundle, and six routes f…

2017-05-02abs ↗pdf ↗

In this paper, we prove that total space of every vector bundle with the base manifold on which the canonical isometric action acts freely, also carries a principal bundle structure. We also obtain another principal bundle based on the total space of given vector bundle.

2016-05-19abs ↗pdf ↗

We consider a diffeological counterpart of the notion of a vector bundle (we call this counterpart a pseudo-bundle, although in the other works it is called differently; among the existing terms there are a "regular vector bundle" of Vincent and "diffeological vector space over X" of Christensen-Wu). The main differenc…

2015-09-10abs ↗pdf ↗

Investigates JJ-equation on holomorphic vector bundles over Kähler manifolds.

problem Analyzes properties and solutions of JJ-equation on holomorphic vector bundles.
method Introduces and studies JJ-equation, provides algebraic and numerical criteria.
result Provides an algebraic condition (asymptotic JJ-stability) and a numerical criterion for vortex bundles.

The paper proves positivity of characteristic forms for certain vector bundles.

problem Characterizing positivity conditions for vector bundles.
method Operator theory, pushforward identities, and differential forms.
result Schur polynomials in Chern forms of Nakano and Griffiths positive vector bundles are positive as differential forms.

Optimal L2 extension theorem for holomorphic vector bundles with singular metrics.

problem Establishing conditions for optimal L2 extension in complex geometry.
method Analyzing singular Nakano positivity and applying L2 extension theorem.
result Necessary condition for equality in optimal L2 extension theorem.

The paper explores linear generalised complex structures over vector bundles.

problem Understanding holomorphic vector bundles in a generalized geometry context.
method Adapted linear splitting and equivalence to C\mathbb C-multiplication and C\mathbb C-Lie algebroid structure.
result Generalised complex Lie algebroids are expressed as complex conjugated Lie bialgebroids.

In this paper, we introduce the notions of αα-Hermitian-Einstein metric and αα-stability for I±I_\pm-holomorphic vector bundles on bi-Hermitian manifolds. Moreover, we establish a Kobayashi-Hitchin correspondence for I±I_\pm-holomorphic vector bundles on bi-Hermitian manifolds. Examples of such vector bundles include…

2014-11-13abs ↗pdf ↗

Paper develops techniques for singular metrics on vector bundles.

problem Developing techniques for singular metrics on vector bundles.
method Introducing non-pluripolar products and defining I\mathcal{I}-good singularities.
result Derives a Chern--Weil type formula for Hermitian vector bundles with I\mathcal{I}-good singularities.

In this paper, we study the Nakano-positivity and dual-Nakano-positivity of certain adjoint vector bundles associated to ample vector bundles. As applications, we get new vanishing theorems about ample vector bundles. For example, we prove that if EE is an ample vector bundle over a compact Kähler manifold XX, $S^kE\…

2010-06-08abs ↗pdf ↗

Study on positivity properties of vector bundle Monge-Ampère equation.

problem Analyzing positivity in vector bundle Monge-Ampère equation.
method Investigates MA-positivity and MA-semi-positive solutions for different ranks of holomorphic bundles over complex surfaces and manifolds.
result Positivity preservation in rank-two holomorphic bundles but not in higher ranks.

A new generalization of Grassmannians, called ν-grassmannians, and a canonical super vector bundle over this new space, say Γ, are introduced. Then, constructing a Gauss supermap of a super vector bundle, the universal property of Γ is discussed. Finally, we generalize one of the main theorems of homotopy classificatio…

2018-02-15abs ↗pdf ↗

The existence problem for holomorphic structures on vector bundles over non-algebraic surfaces is in general still open. We solve this problem in the case of rank 2 vector bundles over K3 surfaces and in the case of vector bundles of arbitrary rank over all known surfaces of class VII. Our methods, which are based on D…

2002-01-24abs ↗pdf ↗

Study shows some biquotients have non-biquotient tangent bundles.

problem Characterizing when the tangent bundle of a biquotient is a biquotient vector bundle.
method Examined infinite families of biquotients and manifolds, using Hirzebruch's signature-Euler characteristic relation.
result Found infinite families of biquotients whose tangent bundles are not biquotient vector bundles.

Proves a theorem for complex flat vector bundles using differential forms.

problem No specific problem stated; focuses on proving a theorem.
method Uses differential forms to prove the Riemann-Roch-Grothendieck theorem.
result Proves the real part of the Riemann-Roch-Grothendieck theorem for complex flat vector bundles.

The most important examples of a double vector bundle are provided by iterated tangent and cotangent functors: TTM, TT^*M, T^*TM, and T^*T^*M. We introduce the notions of the dual double vector bundle and the dual double vector bundle morphism. Theorems on canonical isomorphisms are formulated and proved. Several examp…

1997-10-16abs ↗pdf ↗